| System | Element | Material / equipment | Status | Specification / basis | Unit | Applies to | Why this, for a Maldives resort villa | Qty | Supplier / origin | Unit rate | Amount | Lead time |
| 1. ELECTRICAL - INCOMING SUPPLY, DISTRIBUTION AND PROTECTION | | | | | | | | | | | | |
| Electrical | Incoming supply | Resort LV network connection, termination and isolation set | A | A - undrawn: 230/400 V, 3-phase, 4-wire, 50 Hz supply with separate protective conductor. Existing source, spare capacity, earthing arrangement and connection point require confirmation. | set | All four | Establishes the interface with the island power system; no new generator is assumed per villa. | | | | | |
| Electrical | Villa submain | Copper XLPE insulated, armoured, water-resistant sheathed cable | A | A - undrawn: 0.6/1 kV; preliminary quotation sizes: 5-core 25 mm² for A09/A12 and 5-core 35 mm² for A10/A11. Final sizes depend on length, grouping, temperature, voltage drop and fault clearance. Lengths unmeasured. | m | All four | Long jetty feeders can require substantial upsizing; specify outdoor UV resistance and suitable wet-location construction. | | | | | |
| Electrical | Beach-villa feeder ducts | Heavy-duty HDPE electrical ducts, bends, draw rope and warning tape | A | A - undrawn: preliminary 110 mm ducts, including one spare duct along shared routes; long-radius bends and accessible pulling points. Burial depth and mechanical protection require coordinated design. | m | A09, A10 | Replaceable cables and spare ducts reduce future excavation and island delivery disruption. | | | | | |
| Electrical | Villa distribution board | Factory-built copper-busbar distribution assembly | A | A - undrawn: one per villa; preliminary 63 A incomer/100 A busbar for A09/A12, 80 A/125 A for A10/A11; approximately 24-36 and 36-54 single-pole outgoing ways respectively, with >=25% spare capacity. IEC 61439 assembly; IP54 in a dry service room. | set | All four | Space is needed for relays, metering, controls and future replacement; room area alone does not establish that the board fits. | | | | | |
| Electrical | Main protection and metering | Electronic overcurrent protection, earth-leakage relay, core-balance CT, trip release and multifunction meter | A | A - undrawn: provide both overcurrent and earth-leakage relays; measure A, V and Hz. Enquiry current ceilings are 50.4 A and 64 A per phase for the assumed incomers. Busbars >=125% of incomer; metering CT primary, where used, <=incomer trip. Final settings require coordination. | set | All four | These numerical checks follow the URA SLD guideline, PDF pp. 1-2; selected ratings remain assumptions. | | | | | |
| Electrical | Multiple-source switching | Four-pole breakers and interlocked changeover/ATS equipment | A | A - undrawn: allow four-pole switching for affected three-phase supplies where generator, utility or other sources interact; establish neutral switching and earthing on the approved SLD. ATS assumed at shared distribution, not each villa. | set | All four - shared interface | Prevents unintended source interconnection and addresses URA multiple-source requirements. | | | | | |
| Electrical | Final-circuit protection | Individual RCBOs and equipment-specific protective devices | A | A - undrawn: 30 mA Type A RCBOs as enquiry base; typically 6-10 A lighting, 16-20 A sockets and 16-32 A dedicated equipment circuits. Type F/B where the inverter manufacturer requires it. Breaking capacity selected from fault calculations. | no | All four | Separate circuits limit guest disruption when one outdoor fitting or appliance develops leakage. | | | | | |
| Electrical | Internal circuit wiring | Copper LSZH insulated singles or sheathed cables | A | A - undrawn: preliminary 1.5 mm² lighting, 2.5-4 mm² sockets and 4-6 mm² plant circuits, each with CPC. Match conductor size to installation method and protection; these are quotation sizes. | m | All four | Standardising a small cable range simplifies stockholding and repairs. | | | | | |
| Electrical | Internal containment | Heavy-duty rigid nonmetallic conduit, trunking, boxes and bushes | A | A - undrawn: generally 20/25 mm conduit, larger at grouped runs; segregated power and communications pathways. Fire performance appropriate to the adopted building strategy. | m | All four | Nonmetallic containment avoids rust staining and concealed corrosion. | | | | | |
| Electrical | Outdoor connections | UV-stabilised GRP/polycarbonate junction boxes, glands, lugs and seals | A | A - undrawn: IP66 exposed boxes; tested immersion-rated joints only where unavoidable and specifically engineered. Tinned copper lugs, sealed cable entries and corrosion-compatible glands. | set | All four | IP66 protects against spray, but does not make a submerged connection acceptable. | | | | | |
| Electrical | Local plant isolation | Lockable weatherproof isolators | A | A - undrawn: suitably rated double-pole or four-pole isolator at each AC outdoor unit, heater, pump and other maintainable appliance; IP66 outdoors. | no | All four | Technicians can isolate individual equipment without entering occupied guest rooms. | | | | | |
| Electrical | Socket outlets | Shuttered switched sockets and back boxes | D | D: bedroom outlets appear on elevations; quantities unspecified. A: BS 1363, 13 A outlets; IP66 outdoor accessories, positioned outside prohibited bathroom/pool zones. USB-C charging modules where the operator requests them. | no | All four | Robust standard sockets are easier to replace than proprietary universal outlets. | | | | | |
| Electrical | Minibar supply | Dedicated unswitched socket and labelled circuit connection | D | D: minibar shown; electrical details absent. A: one 13 A supply per villa, continuously energised and excluded from key-card shutdown; confirm appliance quantity and ventilation requirements. | set | All four | Keeps refrigeration operating while the guest is away. | | | | | |
| Electrical | Guest safe provision | Battery provision or concealed power connection | A | A - undrawn: assume one battery-operated safe per villa supplied through FF&E; no mains circuit in the base. A powered safe would require a concealed permanent supply to its manufacturer's specification. | set | All four | Avoids unnecessary wiring and duplicate purchase of the safe itself. | | | | | |
| Electrical |
| Electrical | Protective earthing | Main earth terminal, copper CPCs, earth links and test points | A | A - undrawn: TN-S distribution assumed pending source verification; continuous CPC from shore to each water villa. Preliminary main bonding conductors 16-25 mm², subject to fault and bonding calculations. | set | All four | Seawater, piles and incidental metalwork are not substitutes for a designed protective conductor. | | | | | |
| Electrical | Equipotential bonding | Copper bonding conductors, compatible clamps and accessible links | A | A - undrawn: preliminary 4-6 mm² local supplementary bonding where required; bond applicable pool equipment and extraneous conductive parts following the adopted electrical design. | m | All four | Wet bare-foot environments require reliable fault protection; connections must resist corrosion. | | | | | |
| Electrical | Lightning protection | Conventional air terminals, down conductors, test joints and earth termination | A | A - conditional, undrawn: provide only to a completed IEC 62305 risk assessment; preliminary conductor quotation basis 50 mm² copper or approved equivalent. Coordinate separation distances, roofing interfaces and shore earth network. | set | All four | Exposed lagoon structures require assessment; air terminals alone do not constitute a complete system. | | | | | |
| Electrical | Shared generation interface | Generator/synchronising/ATS extension package | A | A - conditional, undrawn: audit existing resort generation before pricing additions. Any new set includes alternator, controller, starting batteries, exhaust, cooling, fuel system, metering and protection; kVA cannot be established from this ID package. | set | All four - shared | Generation capacity is a resort-wide decision, not a villa materials allowance multiplied by room count. | | | | | |
| Electrical | Solar generation interface | PV modules, inverter, DC/AC protection and monitoring | A | A - conditional, undrawn: separate shared infrastructure allowance only if instructed; capacity, roof suitability and generator/PV controls require design. No PV quantity inferred from villa floor area. | set | All four - shared | Solar can reduce fuel deliveries, but island-grid compatibility must be engineered. | | | | | |
| Electrical | Buggy charging | OEM charger supplies and weatherproof charging outlets | A | A - conditional, undrawn: base location is the shore-side service depot; allow dedicated 230 V, 16 A circuits for OEM chargers, typically 1-3 kW input each. Confirm battery chemistry and charger duty. | set | All four - shared | Concentrates maintenance and charging away from guest decks and lagoon exposure. | | | | | |
| Electrical | Road-vehicle EV charging | Managed Mode 3 charging equipment | A | A - conditional, undrawn: only if road EVs are actually proposed; preliminary 7.4 kW, 230 V, 32 A charger with appropriate residual-current/DC-leakage protection and load management. | no | Shared shore facility | A resort buggy charger is not automatically an EV wallbox requirement. | | | | | |
| 2. ELECTRICAL - LIGHTING, CONTROLS AND COMMUNICATIONS | | | | | | | | | | | | |
| Electrical | COB spotlights | Anti-glare LED luminaires | D | D: 1 W, 3 W and 5 W at 3000 K; 10 W described as white. A: CRI >=90, replaceable driver and suitable wet-zone rating. Exact CCT of "white", beam angles, quantities and dimming compatibility are unresolved. | no | All four | Consistent colour and low glare support the guest experience; do not silently substitute 3000 K for the unspecified white fitting. | | | | | |
| Electrical | Cove lighting | Dimmable LED tape | D | D: 2800 K, approximately 18-62 m per villa; type-specific lengths unavailable. A: 24 V constant-voltage tape, preliminary 9.6 W/m, CRI >=90; output and lengths require the lighting design. | m | All four | Lower-voltage tape suits concealed coves; long runs need distributed feeds to avoid uneven brightness. | | | | | |
| Electrical | LED mounting | Anodised aluminium profiles, diffusers, end caps and clips | A | A - undrawn: continuous heat-dissipating profile sized for selected tape, typically 15-25 mm wide; accessible terminations and replaceable diffuser. | m | All four | Controls LED temperature and protects tape from dust and maintenance damage. | | | | | |
| Electrical | LED drivers | Constant-current spotlight drivers and 24 V constant-voltage strip drivers | A | A - undrawn: matched to each luminaire; preliminary strip-driver modules 60-150 W, normally loaded to <=80% of rating. DALI-2 dimming base; remote accessible mounting, with IP rating appropriate to location. | no | All four | Standard replaceable drivers reduce downtime and avoid opening finished ceilings for routine repairs. | | | | | |
| Electrical | Decorative wall-light connections | Wiring outlets, mounting boxes and connectors | D | D: wall lamps shown; quantities unspecified. A: provide concealed connections and suitable earthing/IP provisions; decorative lamp bodies remain coordinated with the separate finishes/FF&E purchase. | set | All four | Preserves the ID selection without purchasing the same decorative fitting twice. | | | | | |
| Electrical | Illuminated mirror connections | Isolated electrical outlets and driver access provisions | D | D: mirror counts A09/A12: one; A10/A11: three. A: connection voltage and driver arrangement to mirror supplier; 30 mA protected circuit, bathroom-zone compliant location. Mirror bodies excluded here. | set | All four | Integrated mirror electronics need accessible replacement and moisture protection. | | | | | |
| Electrical | Lighting control | DALI-2 controller, dimmers, relay modules and scene keypads | A | A - undrawn: independent bedroom, bathroom, cove and outdoor groups; welcome, reading, night and all-off scenes. Confirm driver compatibility through a sample-room demonstration. | set | All four | Smooth low-level dimming matters more than a nominal "dimmable" label. | | | | | |
| Electrical |
| Electrical | Doorbell | SELV doorbell/chime and weatherproof push button | A | A - undrawn: one entrance set per villa, 12/24 V supply; integrate do-not-disturb indication if adopted. | set | All four | Simple maintainable entrance signalling avoids disturbing neighbouring villas. | | | | | |
| Electrical | Fibre backbone | All-dielectric outdoor OS2 single-mode fibre | A | A - undrawn: preliminary 6-12 fibres per villa branch, water-blocked and UV resistant; termination boxes, splice trays, pigtails and patch leads included. Route along the walkway as Section 9. | m | All four; especially A11/A12 | Fibre avoids long copper-link limits and conductive surge paths between shore and villa. | | | | | |
| Electrical | Villa network equipment | PoE switch, fibre termination and compact equipment cabinet | A | A - undrawn: preliminary managed 8-port switch for A09/A12 and 16-port for A10/A11; ventilated accessible dry cabinet. Small UPS where required by the operator's communications strategy. | set | All four | Local PoE supports WiFi, telephone and room controls with common spare equipment. | | | | | |
| Electrical | Structured cabling | Cat 6A cable, outlets and patching accessories | A | A - undrawn: solid-copper LSZH cable indoors; permanent copper links <=90 m. Outdoor sections require suitable cable construction and containment. Quantities await outlet layouts. | m | All four | Reliable wired backhaul prevents resort WiFi from depending on a chain of wireless repeaters. | | | | | |
| Electrical | WiFi | Managed ceiling/wall access points | A | A - undrawn: WiFi 6 or compatible operator standard; preliminary one AP for A09/A12 and two for A10/A11, subject to coverage survey and wall construction. | no | All four | Coverage must include the bed, bathroom and usable deck without excessive neighbour interference. | | | | | |
| Electrical | Television service | IPTV/data outlet, patch lead and power connection | D | D: TV counts A09/A10/A11/A12 = 1/3/2/1. A: IPTV over resort LAN assumed; TV bodies remain FF&E. Add coax only if the operator's headend requires it. | set | All four | Uses the resort backbone and avoids an assumed dish or receiver at every villa. | | | | | |
| Electrical | Telephone | PoE IP telephone and labelled data outlet | A | A - undrawn: preliminary one handset for A09/A12 and two for A10/A11; connect to resort PBX, with emergency/front-desk dialling. Bathroom handset only if operator-required. | no | All four | Supports guest assistance without a separate long analogue cable network. | | | | | |
| 3. HVAC | | | | | | | | | | | | |
| HVAC | Small-villa AC - base | Matched concealed ducted inverter split system | A | A - undrawn: one indoor unit and one air-cooled outdoor unit per villa; preliminary 6-8 kW cooling. Quote at tropical ambient conditions; final selection requires sensible and latent load calculations. | set | A09, A12 | Concealed ducted DX cooling suits a luxury bedroom and permits independent villa maintenance. | | | | | |
| HVAC | Larger-villa AC - base | Villa-scale mini-VRF system with concealed indoor units | A | A - undrawn: preliminary 16-24 kW outdoor system; independent bedroom zones, an enclosed living zone if present, and approximately 2-2.5 kW maid-room unit. Final zone count and capacities require plans and heat-load calculations. | set | A10, A11 | Several indoor zones share fewer outdoor units, reducing congestion around small service rooms. | | | | | |
| HVAC | Larger-villa AC - substitution | Separate one-to-one ducted inverter splits | ALT | ALT - undrawn: replaces the larger-villa mini-VRF package above; separate matched systems for each conditioned zone, selected to the same calculated loads. | set | A10, A11 | More outdoor space is needed, but a compressor failure can be confined to one zone. | | | | | |
| HVAC | Outdoor-unit marine package | Factory-treated coils, coated chassis and corrosion-resistant fasteners | A | A - undrawn: factory coastal treatment covering coils, edges and casing; documented suitability for the actual salt exposure, protected electronics and accessible freshwater wash-down. | set | All four | A generic "blue-fin" description alone does not establish resistance to severe lagoon exposure. | | | | | |
| HVAC | Outdoor mounting | Equipment rails, vibration isolators and compatible fixing hardware | A | A - undrawn: corrosion-resistant supports, restrained elastomer/spring isolation as selected, manufacturer airflow and service clearances. Locate outside enclosed MEP rooms unless engineered ventilation supports the heat rejection. | set | All four | Prevents hot-air recirculation, bedroom vibration and premature corrosion. | | | | | |
| HVAC | Refrigerant pipework | Refrigeration-grade dehydrated copper tube and fittings | A | A - undrawn: EN 12735-1 tube; preliminary small-system liquid OD 6.35-9.52 mm and gas OD 12.7-19.05 mm. VRF branches, diameters and equivalent lengths strictly to selected manufacturer. | m | All four | Correct tube quality and controlled joints are essential where refrigerant repairs require island mobilisation. | | | | | |
| HVAC | Refrigerant and commissioning consumables | OEM refrigerant, dry nitrogen and approved jointing consumables | A | A - undrawn: R32-based equipment is an enquiry option, subject to actual product availability, charge limits and room-volume safety assessment. Charge only by the selected system's schedule. | kg | All four | Avoids mixing refrigerants or assuming an unrestricted charge in small sleeping rooms. | | | | | |
| HVAC | Refrigerant insulation | Closed-cell elastomeric insulation with sealed vapour barrier | A | A - undrawn: preliminary 19 mm indoors and 25 mm outdoors, increased where condensation calculation requires; all joints vapour-sealed, with UV-resistant external jacketing. | m | All four | Tropical humidity makes gaps in insulation a frequent source of dripping and ceiling damage. | | | | | |
| HVAC | Condensate drainage | uPVC condensate pipe, fittings, insulation and cleaning tees | A | A - undrawn: generally 25/32 mm pipe, preliminary fall >=1:100; trap to unit pressure requirements and provide accessible cleaning points. Terminate through an approved indirect connection. | m | All four | Avoids stagnant water and sewer odour entering the AC system. | | | | | |
| HVAC | Condensate lift - substitution | Low-noise condensate pump with reservoir and alarm | ALT | ALT - undrawn: replaces gravity discharge locally only where falls cannot be achieved; typically 5-10 m lift class, selected to actual flow/head, with high-level AC shutdown. | set | All four, where necessary | Pumps add maintenance and should be limited to locations that need them. | | | | | |
| HVAC | Supply and return ducts | Sealed sheet-metal ductwork, plenums and short flexible connectors | A | A - undrawn: preliminary 0.6-0.8 mm sheet metal for small ducts, gauge to dimensions; protected metal indoors and suitable corrosion-resistant construction externally. Avoid long flexible-duct runs. | m2 | All four | Low resistance and airtight joints reduce fan noise and wasted cooling. | | | | | |
| HVAC |
| HVAC | AC grilles | Supply diffusers, return grilles, dampers and removable filters | A | A - undrawn: coordinated concealed/linear outlets; low face velocity, accessible filters and balancing dampers. Bedroom acoustic target approximately NR25, subject to acoustic design. | no | All four | Avoids draughts over beds and provides maintainable filters. | | | | | |
| HVAC | Drawing-indicated exhaust terminals | Ceiling-mounted exhaust grilles | D | D: two exhaust vents per villa. A: preliminary 125-150 mm connections; locations, duct connections and performance unconfirmed. Additional terminals may be required for all enclosed WC/shower compartments. | no | All four | Two ceiling symbols do not prove adequate extraction for a three-bathroom villa. | | | | | |
| HVAC | Bathroom exhaust fans | Low-noise EC inline/centrifugal fans | A | A - undrawn: preliminary 100-150 m³/h per main bathroom and 60-90 m³/h for maid bathroom; select at actual duct resistance. Allow separate branches for WC and shower compartments. | no | All four; maid allowance A10/A11 | Removes moisture and odour while allowing fans to be maintained away from the guest's head. | | | | | |
| HVAC | Exhaust ductwork | Rigid corrosion-resistant ducts, dampers and external terminals | A | A - undrawn: preliminary 125-160 mm main-bath ducts and 100-125 mm maid branches; backdraft dampers, cleaning access, weather louvres and insect screens. Fire dampers where the fire strategy requires them. | m | All four | Salt-resistant terminals and proper discharge locations prevent corrosion and odour recirculation. | | | | | |
| HVAC | Fresh-air treatment | Filtered outdoor-air unit with active cooling/dehumidification | A | A - undrawn: preliminary package range 120-180 m³/h for A09/A12 and 250-400 m³/h for A10/A11; final outside-air quantities based on occupancy and exhaust balance. ERV alone is not assumed to control humidity. | set | All four | Recirculating split/VRF units do not supply fresh air; untreated outdoor air can overwhelm latent capacity. | | | | | |
| HVAC | Transfer air | Acoustic transfer grilles or door-transfer assemblies | A | A - undrawn: size for bathroom exhaust replacement air while maintaining privacy and low noise; coordinate with doors and partitions supplied elsewhere. | no | All four | Extract fans need a deliberate replacement-air path. | | | | | |
| HVAC | Temperature and humidity control | Wired thermostats, humidity sensors and GRMS interfaces | A | A - undrawn: enquiry room target 24-25°C and approximately 50-60% RH; unoccupied setback retains dehumidification. Include condensate-fault and equipment-fault reporting. | set | All four | Switching all cooling off when a guest leaves can create damp finishes and odours. | | | | | |
| 4. PLUMBING - WATER DISTRIBUTION, HOT WATER AND SANITARY CONNECTIONS | | | | | | | | | | | | |
| Plumbing | Villa cold-water entry | Meter, strainer, isolating valve, PRV, gauge and union connections | A | A - undrawn: preliminary DN25 entry for A09/A12 and DN32 for A10/A11; target approximately 2.5-3 bar dynamic pressure at outlets, subject to selected rain showers and simultaneous demand. | set | All four | Stable balanced pressure is important when guests use baths and showers together. | | | | | |
| Plumbing | Internal hot/cold pipework - base | PEX-a or multilayer potable-water pipe with proprietary fittings | A | A - undrawn: preliminary OD16-20 mm outlet branches, OD25 mm bath feeds, OD25-40 mm distribution. Use a complete certified system rated for design pressure and hot-water temperature. | m | All four | Polymer pipe avoids marine corrosion; minimise inaccessible fittings and keep one compatible fitting system. | | | | | |
| Plumbing | Internal pipework - substitution | Heat-fusion PP-R/PP-RCT pipe and fittings | ALT | ALT - undrawn: replaces the internal PEX/multilayer system above; preliminary OD20-40 mm, PN20 quotation class at 20°C, with pressure derating checked at operating hot-water temperature. | m | All four | Familiar island installation method, provided fusion workmanship and expansion control are reliable. | | | | | |
| Plumbing | Isolation and balancing | DZR brass/bronze valves, check valves, unions and manifold assemblies | A | A - undrawn: isolate each bathroom, heater and maintainable appliance; generally DN15-32. Materials must suit the treated RO water chemistry. | no | All four | Low-alkalinity water can attack unsuitable brass; bathroom isolation avoids closing an entire villa. | | | | | |
| Plumbing | Hot-water generation H1 - base | Local air-source heat-pump water heater with storage and electric backup | A | A - undrawn: preliminary 200-300 L storage for A09/A12 and 400-500 L for A10/A11; approximately 3-5 and 6-10 kW thermal recovery respectively, with staged electric backup. Storage volume requires actual bath capacity and simultaneous-use checks. | set | All four | Reduces electricity demand compared with resistance-only storage and avoids long shore-to-villa hot-water runs. | | | | | |
| Plumbing | Hot-water generation - substitution | Local electric storage cylinders | ALT | ALT - undrawn: replaces H1; same verified storage duty, preliminary 3 kW element for small villas and staged 2 x 3 kW for larger villas. Recalculate feeder loads and recovery time. | set | All four | Simple equipment and readily stocked spares, but higher island generation demand. | | | | | |
| Plumbing | Hot-water generation - substitution | Central/cluster heat-recovery or heat-pump plant with circulation network | ALT | ALT - undrawn: replaces H1; price shared generation/storage plus insulated flow/return mains, villa isolation, balancing and local temperature control. Capacity and route lengths remain unknown. | set | All four - shared and villa interfaces | Attractive where an existing heat source and nearby hot-water network are available; long jetty circulation losses must be included. | | | | | |
| Plumbing | Hot-water generation - substitution | Solar-thermal preheat, storage and auxiliary heating package | ALT | ALT - undrawn: replaces H1 with a complete equivalent-duty package; preliminary collector allowance 3-4 m² for small villas and 6-8 m² for larger villas, subject to solar/yield and roof assessment. Auxiliary heating remains necessary. | set | All four | Solar availability helps, but roof corrosion, storm restraint and cloudy-period recovery matter. | | | | | |
| Plumbing | Cylinder safety accessories | Expansion vessel, relief valves, inlet controls, tundish and drain pan | A | A - undrawn: complete manufacturer-approved unvented-cylinder safety group; relief pipe sized to discharge calculation and routed visibly to a safe approved drain. | set | All four | Protects guests and maintenance staff from uncontrolled hot-water discharge. | | | | | |
| Plumbing | Hot-water hygiene and tempering | Thermostatic mixing valves, temperature gauges and sampling points | A | A - undrawn: design for storage >=60°C and hot distribution >=50°C before local mixing; preliminary shower/bath delivery 38-43°C, set by operator risk assessment. Apply a complete water-safety plan. | set | All four | These are adopted engineering benchmarks, not claimed Maldives statutory temperatures; see HSE temperature-control guidance. | | | | | |
| Plumbing | Hot-water return, where needed | Small bronze/stainless circulation pump, return pipe and balancing valves | A | A - conditional, undrawn: DN15-20 local return where pipe lengths cause unacceptable wait time; temperature-controlled circulation. Essential component of the central-system alternative. | set | Primarily A10/A11; others if required | Limits wasted desalinated water while waiting for a hot shower. | | | | | |
| Plumbing |
| Plumbing | Bath connection kits | Concealed hot/cold connections, isolation, waste, overflow and trap | D | D: baths A09/A12: one; A10/A11: two. A: preliminary DN20 supplies and DN40/50 wastes; accessible traps and supplier-matched connections. Bath bodies and exposed fillers excluded from this purchase. | set | All four | Actual tub volume and fill rate govern heater sizing; concealed waste access prevents destructive repairs. | | | | | |
| Plumbing | WC/cistern connection kits | Water isolation, cistern connection and soil pan connector | D | D: WC/cisterns A09/A12: one; A10/A11: three. A: DN15 cold supply and approximately 90/110 mm soil connection, matched to the selected carrier/cistern. Fixture assemblies excluded here. | set | All four | Keeps MEP connections compatible with the already selected wall-hung system. | | | | | |
| Plumbing | Lavatory connection kits | Hot/cold tails, isolating valves, waste and trap | D | D: lavatories A09/A12: one; A10/A11: three. A: DN15 supplies, DN32/40 waste and accessible trap. Lavatory bodies and exposed taps excluded here. | set | All four | Use the supplied count; the phrase "twin vanity" does not justify inventing additional basins. | | | | | |
| Plumbing | Indoor shower connections | Concealed connections, isolation and supplier-matched valve interfaces | D | D: rain heads A09/A12: one; A10/A11: three; handsets respectively one and two. A: preliminary DN20 main-shower feeds, balanced hot/cold pressure and accessible concealed valves. Exposed fittings excluded here. | set | All four | Rain heads and handsets can share a mixer; head count is not automatically mixer count. | | | | | |
| Plumbing | Hand-bidet backflow protection | Dedicated break-tank/booster arrangement with suitable air gap | D | D: hand bidets A09/A12: one; A10/A11: three. A: category-5-equivalent protection adopted; preliminary 20-50 L packaged tank serving a dedicated bidet circuit, with pump sized to simultaneous use. | set | All four | A hose reaching a WC requires more than a simple check valve under the adopted approach; see Water Regs UK guidance. | | | | | |
| Plumbing | Outdoor shower connections | Isolatable water branches and trapped foul-drain connection | D | D: one outdoor shower at A09/A10/A12; two at A11. A: DN15-20 cold supply base, hot supply only if selected; approximately DN50 trapped drainage. Shower bodies excluded here. | set | All four | Soap-bearing shower water is collected as wastewater, including over the lagoon. | | | | | |
| Plumbing | Water-leak control | Leak sensors, controller and motorised isolation valve | A | A - undrawn: sensors beneath cylinder and vulnerable concealed assemblies; alarm to resort engineering, with coordinated automatic shutoff where appropriate. | set | All four | Early warning limits water loss and damage while a villa is vacant. | | | | | |
| 5. PLUMBING - SANITARY DRAINAGE AND FOUL SEWERAGE | | | | | | | | | | | | |
| Plumbing | Internal waste branches | HDPE/PP sanitary drainage pipe, fittings and acoustic supports | A | A - undrawn: generally DN40/50 basin, bath and shower wastes; larger combined branches by discharge-unit calculation. Preliminary falls around 1:40-1:60 where applicable, checked against the adopted BS EN 12056 design. | m | All four | Reliable falls, access and acoustic isolation prevent blockages and guest complaints. | | | | | |
| Plumbing | Soil branches and stacks | Welded HDPE soil pipe, swept branches and access fittings | A | A - undrawn: preliminary 110 mm OD main soil pipe; welded underdeck joints, cleaning access at changes of direction and stack bases. Verify hydraulic capacity and support spacing. | m | All four | Welded plastic systems tolerate marine exposure without relying on corroding metal drain pipe. | | | | | |
| Plumbing | Vent stacks | UV-resistant HDPE/uPVC vent pipe and weather terminals | A | A - undrawn: preliminary DN75-110 venting, with final sizes and discharge locations coordinated away from openings and fresh-air intakes. Air-admittance valves only as an approved supplement. | m | All four | Proper venting preserves trap seals and carries odour away from guest areas. | | | | | |
| Plumbing | Floor drains | Trapped drain bodies, removable baskets and compatible outlet fittings | A | A - undrawn: generally DN50/75 outlets, approximately 50-75 mm water seals where selected system permits; accessible cleaning and trap replenishment where needed. Quantities require drainage layouts. | no | All four | Shallow floor-level changes do not prove that adequate traps fit; allow underfloor service depth. | | | | | |
| Plumbing | Beach-villa external sewer | Buried uPVC/HDPE drain pipe, inspection fittings and chamber internals | A | A - undrawn: preliminary 110/160 mm pipe to resort sewer; gravity assumed only after an invert survey. Civil chamber shells, excavation and concrete remain outside this materials list. | m | A09, A10 | High groundwater makes watertight joints and controlled infiltration important. | | | | | |
| Plumbing | Overwater sewage S1 - base | Sealed duplex sewage lifting station | A | A - undrawn: short gravity branches collect blackwater and greywater into an accessible sealed HDPE/GRP vessel; two duty/standby sewage pumps return flow to shore. Preliminary enquiry duty 1-2 L/s at 10-20 m head; approximately 500 L gross vessel for A12 and 1,000 L for A11, subject to bath-discharge and emergency-storage calculations. | set | A11, A12 | This is a practical expansion allowance where a shore pressure connection is possible; do not use a domestic behind-WC macerator as the whole-villa base. | | | | | |
| Plumbing | Overwater sewage - gravity substitution | Continuous gravity collector to a surveyed shore receiving point | ALT | ALT - undrawn: replaces S1 and its pressure main where continuous fall is demonstrably available. Preliminary 110/160 mm collector; at 1:80, a 100 m run consumes 1.25 m of fall before connection losses and clearance. | set | A11, A12 | A long shallow walkway often cannot provide enough fall while maintaining marine clearance. | | | | | |
| Plumbing | Overwater sewage - vacuum substitution | Vacuum interface chambers, vacuum mains and shared vacuum station | ALT | ALT - undrawn: replaces S1 and its pressure network as a complete system. Conventional WCs drain by gravity into interface chambers; vacuum conveys sewage to a shore vessel, then sewage pumps transfer it to treatment. Preliminary PE100 SDR11 mains OD90-160 mm, supplier-designed. | set | A11, A12 - shared network | Requires interface valves, vacuum pumps, collection vessel, discharge pumps, controls and standby power-not merely a different pipe. | | | | | |
| Plumbing | Vacuum-system design allowance | Proprietary interface valves, monitoring and profiled pipe fittings | ALT | ALT - part of vacuum substitution: approximately −0.5 to −0.6 bar operating pressure, with engineered saw-tooth profile and verified lift/friction budget. Final layout to URA and selected supplier requirements. | set | A11, A12 - vacuum alternative | URA publishes specific requirements: URA 2003:2021, PDF pp. 38-40. | | | | | |
| Plumbing |
| Plumbing | Sewage valves and maintenance fittings | Full-bore isolation, non-return valves, dismantling joints and flushing connections | A | A - S1 base, undrawn: valve set on each pump discharge; accessible branch isolation, engineered air-release points and closed tanker/bypass connection where needed. | set | A11, A12 | Enables a pump or branch to be repaired without opening sewage piping over the lagoon. | | | | | |
| Plumbing | Sewage station monitoring | Level controls, independent high-high alarm, local panel and telemetry | A | A - S1 base, undrawn: duty alternation, pump-fail alarm, dry-run protection and independently sensed high level; backup-supported alarm and resort standby supply. No emergency overflow to lagoon. | set | A11, A12 | Failures must reach engineering staff before wastewater backs up into guest bathrooms. | | | | | |
| Plumbing | Sewage containment and access | Sealed covers, vent system, removal guides and lifting accessories | A | A - undrawn: vessel and covers located/protected to verified flood and wave conditions; removal access from the walkway, adequate emergency usable volume and safe pump-out provision. | set | A11, A12 | A buried-style tank suspended beneath a deck still needs buoyancy, splash and maintenance assessment. | | | | | |
| Plumbing | Resort treatment interface | Shore receiving connection, flow measurement and sampling facilities | A | A - undrawn: connect to an approved resort STP after checking hydraulic, organic and peak-flow capacity. Existing STP technology, capacity and spare capacity are unknown. | set | All four - shared | Conveyance to shore does not itself treat sewage. | | | | | |
| Plumbing | Additional treatment, if required | Packaged biological STP, disinfection and sludge-handling equipment | A | A - conditional, undrawn: separate shared allowance for capacity extension; MBBR/SBR/MBR selection and m³/day rating require resort population, loads and effluent/reuse criteria. Include screening, equalisation, pumps, aeration, controls and sludge removal. | set | All four - shared | Prevents an assumed per-villa septic tank or untreated lagoon outfall becoming the default. | | | | | |
| Plumbing | Sand interception | Removable sediment baskets or small accessible sand traps | A | A - undrawn: provide at outdoor shower collection points; preliminary 15-30 L removable sediment collection where suitable, connected to foul drainage. | no | All four | Sand can block traps and damage sewage pumps. | | | | | |
| Plumbing | Grease interception | Grease separator and associated connections | A | A - conditional, undrawn: no villa grease interceptor in the base because no cooking kitchen is identified. Add an EN 1825-sized separator only if food preparation/washing scope is introduced. | set | Any villa with subsequently confirmed kitchen | A minibar alone does not create a grease-interceptor requirement. | | | | | |
| 6. WATER SUPPLY SOURCE AND RESORT DISTRIBUTION | | | | | | | | | | | | |
| Water supply source and resort dis | Water-source interface | Connection to resort treated freshwater network | A | A - undrawn: existing central desalination and storage assumed as the first interface to investigate; source, quality, capacity and spare capacity unconfirmed. Additional shared plant below is conditional on that investigation. | set | All four - shared | Avoids purchasing a desalination plant for each villa or duplicating existing resort equipment. | | | | | |
| Water supply source and resort dis | Desalination capacity addition | Modular seawater RO skids | A | A - conditional, undrawn: seawater membranes, high-pressure pump, pressure vessels, controls and energy recovery where suitable; preliminary operating pressure approximately 55-70 bar, with components rated above maximum design pressure. Capacity requires a resort water balance. | set | All four - shared | Modular plant and common membrane sizes help maintain production during island servicing. | | | | | |
| Water supply source and resort dis |
| Water supply source and resort dis | Potable post-treatment | Remineralisation/pH correction, disinfection and monitoring equipment | A | A - conditional, undrawn: stabilise RO permeate before distribution; provide controlled disinfection, conductivity, pH and residual monitoring, sampling taps and potable-contact components. | set | All four - shared | Untreated low-mineral permeate can be corrosive; UV alone leaves no disinfectant residual in long distribution pipes. | | | | | |
| Water supply source and resort dis | Freshwater storage | Covered potable GRP/HDPE tanks with screened vents and level controls | A | A - undrawn: preliminary usable storage allowance of five days' approved design demand, with maintainable compartments and turnover management; confirm existing storage and fire-reserve separation. | set | All four - shared | The URA 2026 as-built guideline, PDF p. 8 expressly asks for storage justification against a five-day requirement. | | | | | |
| Water supply source and resort dis | Distribution pumping | Duty/standby variable-speed booster set and pressure vessel | A | A - undrawn: select flow and head from network modelling to maintain villa outlet pressures; include dry-run protection, gauges, non-return valves, isolation and telemetry. | set | All four - shared | Shore-side redundancy reduces the need for noisy guest-villa booster pumps. | | | | | |
| Water supply source and resort dis | Island and jetty water mains | Potable-certified PE100 pressure pipe and electrofusion/butt-fusion fittings | A | A - undrawn: preliminary OD63-110 mm shared mains and OD32-40 mm villa branches; PN16 quotation basis with temperature/surge checks. Shade exposed pipes and provide accessible isolation and flushing points. | m | All four; jetty sections A11/A12 | Welded polymer mains resist seawater exposure and accommodate engineered thermal movement. | | | | | |
| Water supply source and resort dis | Rainwater harvesting | Screens, first-flush devices, covered tanks and separate distribution equipment | A | A - conditional, undrawn: nonpotable landscape/cleaning use assumed; catchment suitability and storage from rainfall/yield analysis. Potable top-up through an air gap; no cross-connection to drinking-water pipes. | set | All four - shared or clustered | Reduces RO demand where suitable clean catchments exist; thatch or contaminated roofs need specific assessment. | | | | | |
| Water supply source and resort dis | Roof/stormwater conveyance | Rainwater drainage pipe, outlets and cleaning fittings | A | A - undrawn: preliminary 75-110 mm branches only for enquiry; final sizing from roof catchments and design rainfall. Keep clean stormwater separate from foul sewage and pool backwash. | m | All four | Tropical rainfall can overwhelm drainage sized only from floor area. | | | | | |
| Water supply source and resort dis | RO brine disposal | Pressure pipe, valves, monitoring and approved outfall fittings | A | A - conditional, undrawn: material and diameter from plant reject flow and approved discharge design; outfall location, diffuser and environmental conditions remain unknown. | set | All four - shared | Brine disposal is a separate engineered environmental interface, not a connection beneath a water villa. | | | | | |
| 7. PLUNGE POOLS AND SLIDE-SERVICE INTERFACES | | | | | | | | | | | | |
| Plunge pools and slide | Pool hydraulic enquiry basis | Individually sized circulation plant package | D | D: areas A09 15.02 m², A11 approximately 35.4 m², A12 13.67 m². A: illustrative 1.2 m mean water depth gives approximately 18.0/42.5/16.4 m³ respectively. The −1200 level does not establish water depth or water-surface elevation. | set | A09, A11, A12 | Pump and filter selections below are provisional until pool sections, waterline and bather duty are issued. | | | | | |
| Plunge pools and slide | A10 pool allowance | Provisional pool plant package | D | D: 38.20 m² is combined deck/pool information. A: obtain separate pool dimensions and sections; price an A11-scale provisional plant only as an explicitly adjustable allowance. | set | A10 | Treating 38.20 m² as pool area would fabricate the pool volume. | | | | | |
| Plunge pools and slide | Circulation pump | Variable-speed pool pump with integral strainer basket | A | A - undrawn: preliminary 6 m³/h at 10-15 m head for A09/A12; 12 m³/h at 10-15 m for A11 and provisional A10. Approximately 0.55-1.1 kW and 1.1-1.5 kW motor classes; verify pump curves and actual turnover requirement. | no | All four | Variable speed reduces noise and energy; selection must include real pipe and filter resistance. | | | | | |
| Plunge pools and slide | Filter vessel | Corrosion-resistant GRP sand/glass-media pressure filter | A | A - undrawn: preliminary 600 mm diameter for A09/A12, 750 mm for A11 and provisional A10; pressure rating typically >=2.5 bar, subject to pump shutoff pressure. Include valves, gauge and air release. | no | All four | GRP avoids corroding steel vessels and uses familiar service parts. | | | | | |
| Plunge pools and slide | Filter media | Graded silica sand or approved activated glass media | A | A - undrawn: grading, support layers and charge mass strictly to selected filter; quote by kg, including initial charge and separately identified spare allowance. | kg | All four | Incorrect grading can cause poor filtration or media loss into pools. | | | | | |
| Plunge pools and slide | Surface collection P1 - base | Overflow fittings, balance-tank fittings and prefabricated balance tank | A | A - undrawn: overflow/infinity operation assumed solely for enquiry; preliminary 1-2 m³ tank for A09/A12 and 3-5 m³ for A11/provisional A10. Final volume includes displacement, drain-down and operating reserve. | set | All four | The drawings do not confirm an overflow edge or balance tank; space and elevations are major coordination items. | | | | | |
| Plunge pools and slide | Surface collection - substitution | Skimmers, equalisation connections and water-level control | ALT | ALT - undrawn: replaces P1 where a skimmer pool is approved; omit the overflow balance tank and associated overflow collection equipment. | set | All four | A valid lower-complexity alternative, but it changes the pool edge and operating waterline. | | | | | |
| Plunge pools and slide | Pool circulation pipework | Pressure-rated uPVC pipe and solvent-weld fittings | A | A - undrawn: preliminary DN50/63 for small pools and DN63/75 for larger pools; PN10/16 as selected, UV-protected outdoors. Include unions, isolation valves, swept fittings and independently supported pipework. | m | All four | Readily serviceable pressure plastics suit chlorinated water and marine surroundings. | | | | | |
| Plunge pools and slide | Inlets and suction outlets | Pool return fittings, certified suction covers and collection fittings | A | A - undrawn: returns arranged to avoid dead zones; no single blockable suction outlet. Engineer multiple/unblockable suction arrangements and cover ratings for maximum possible flow. | set | All four | Entrapment protection must be designed as a complete hydraulic arrangement. | | | | | |
| Plunge pools and slide | Automatic chemical control | pH/disinfectant controller, probes, flow cell and dosing pumps | A | A - undrawn: sodium-hypochlorite dosing plus separate pH correction as base; flow-proved interlock stops dosing when circulation fails. Include calibration and sampling accessories. | set | All four | Automated control supports consistent water quality when guest use varies. | | | | | |
| Plunge pools and slide | Chlorination - substitution | Salt chlorinator with compatible controller and cell | ALT | ALT - undrawn: replaces hypochlorite dosing equipment only; retain pH control. Size output to pool volume, temperature and bather load; confirm every wetted component's salt compatibility. | set | All four | Reduced liquid-chlorine handling must be weighed against salt-related corrosion and wastewater salinity. | | | | | |
| Plunge pools and slide | Chemical storage | Separate chemical-compatible PE containers and spill trays | A | A - undrawn: preliminary 20-50 L day containers for small pools, 50-100 L for larger pools, adjusted to consumption and delivery interval. Physically segregate incompatible chemicals and provide dedicated ventilation. | set | All four | Acid and hypochlorite must not share containment or an unventilated electrical cupboard. | | | | | |
| Plunge pools and slide |
| Plunge pools and slide | Pool underwater lighting | Pool-rated LED fittings, niches and integral cables | A | A - undrawn: preliminary 12 V AC SELV, IP68 fittings, approximately 10-20 W each; one-two for small pools and two-four for larger pools, subject to lighting design. | no | All four | Low-voltage pool-rated equipment and sealed construction suit a wet bare-foot environment. | | | | | |
| Plunge pools and slide | Pool electrical package | Safety isolating transformer, control panel and protective devices | A | A - undrawn: transformer outside prescribed pool zones; primary circuit protection, local isolation, pump protection, bonding and interlocks designed to the adopted IEC/BS pool requirements. | set | All four | Pool lighting and pump equipment require coordinated protection, not just waterproof fittings. | | | | | |
| Plunge pools and slide | Pool temperature control | Reversible pool heat pump/chiller with titanium exchanger | A | A - conditional, undrawn: no active heating/chilling included in the base. Quote optional approximately 10-15 kW thermal class for small pools and 15-25 kW for larger pools, subject to heat-balance calculation. | set | All four | Maldives plunge pools may need cooling as well as occasional heating; shaded airflow and noise are critical. | | | | | |
| Plunge pools and slide | Backwash and pool-emptying connection | Controlled waste pipe, holding/equalisation and dechlorination provisions | A | A - undrawn: route to the approved resort wastewater disposal system after checking chlorine, salinity and peak flow; do not assume direct STP acceptance or lagoon discharge. | set | All four | A short filter backwash can create a large instantaneous load on small sewage systems. | | | | | |
| Plunge pools and slide | Pool plant location | Accessible equipment skid, isolators, vibration mounts and leak detection | A | A - undrawn: individual dry service bay adjacent to the pool; verify suction conditions and maintenance removal clearances. Do not assume all equipment fits the 3.14 m² MEP room or A11's 5.68 m² service room. | set | All four | Pool equipment, hot-water storage, AC and electrical gear compete for very limited space. | | | | | |
| Plunge pools and slide | Overwater pool elevations | Raised/protected equipment connections and service access | D | D: pool datum −1200, high tide −1500 for A11/A12. A: equipment elevation requires flood, surge and wave assessment; the 300 mm difference is not a safe freeboard specification. | set | A11, A12 | Pumps and electrical boxes must not be placed at pool datum simply because the plan shows it. | | | | | |
| Plunge pools and slide | Slide wetting services | Conditional pump, strainer, isolation and dedicated wetting pipework | D | D: one RC slide at A09; two at A11. A: no wetting system is confirmed. If required by the slide designer, quote a separate hydraulically designed package; discharge destination and safety interlocks require confirmation. | set | A09, A11 | An RC slide does not prove that a pump is required or that it discharges into the pool. | | | | | |
| 8. FIRE DETECTION, FIREFIGHTING AND EMERGENCY LIGHTING | | | | | | | | | | | | |
| Fire detection, firefighting and e | Villa fire detection | Addressable optical smoke detectors and bases | A | A - undrawn: detectors in each sleeping room, including maid accommodation, and other rooms/circulation required by the fire strategy. EN 54-compatible system; final quantities and positions require a fire layout. | no | All four | Detached accommodation still requires prompt detection and notification to resort staff. | | | | | |
| Fire detection, firefighting and e |
| Fire detection, firefighting and e | Alarm notification | Sounders, visual alarms and interfaces | A | A - undrawn: bedroom alarm design target approximately 75 dBA at the bedhead with doors closed; accessible-room visual/tactile provisions as required. Final cause-and-effect and sound calculations by fire designer. | set | All four | A corridor sounder may not wake a guest behind closed doors. | | | | | |
| Fire detection, firefighting and e | Resort alarm connection | Approved fire-alarm loop/network interface and isolators | A | A - undrawn: monitored connection to the resort fire panel; fault isolation at villa branches. Any fibre/network interface must be approved for the fire system, rather than relying on the ordinary guest LAN. | set | All four | Engineering/security staff need to identify the particular villa and maintain alarm service during network faults. | | | | | |
| Fire detection, firefighting and e | Fire-alarm wiring | Fire-resistant cables, supports and weatherproof interfaces | A | A - undrawn: preliminary 2-core 1.5 mm² fire-resistant cable where appropriate to the selected system; final cable construction and circuit survivability to fire design. | m | All four | Exposed walkway runs need both environmental protection and dependable alarm transmission. | | | | | |
| Fire detection, firefighting and e | Portable extinguishers | EN 3 extinguishers and protective cabinets | A | A - undrawn: preliminary one 6 L water-mist extinguisher of suitable fire rating near each villa exit; additional 2 kg CO₂ unit at electrical plant where the risk assessment supports it. Final type/count by fire authority and operator. | no | All four | Appropriate cabinets resist salt exposure; selection should consider training and guest-area use. | | | | | |
| Fire detection, firefighting and e | Emergency luminaires | Self-contained LED emergency fittings | A | A - undrawn: preliminary three-hour battery duration, automatic testing and external IP65 construction; illuminate escape paths, changes of direction and relevant equipment. Photometric design target generally >=1 lux on escape-route centreline. | no | All four and access walkways | Lighting remains available during generator transfer, local circuit faults and key-card shutdown. | | | | | |
| Fire detection, firefighting and e | Escape signage | Maintained illuminated exit/direction signs | A | A - undrawn: signs and pictograms to the adopted fire strategy; provide directional continuity from water villa to the designated safe shore route. Quantities await the escape layout. | no | All four; especially A11/A12 | The overwater walkway is part of the evacuation route. | | | | | |
| Fire detection, firefighting and e | Fixed firefighting | Conditional sprinkler/hydrant distribution and control equipment | A | A - conditional, undrawn: determine need through the approved resort fire strategy, construction type, fire-service access and water supply. Do not infer exemption solely because a villa is detached. | set | All four - villa and shared interfaces | A required fixed system can materially affect shore pumps, storage and jetty service capacity. | | | | | |
| 9. SERVICES ROUTING OVER WATER | | | | | | | | | | | | |
| Services routing over water | Main service corridor | Coordinated accessible walkway service zone | D | D: overwater setting; A12 walkway-to-room identified. A: services run from shore along/within accessible jetty supports, then branch to each villa. Actual route, length, clearances and support geometry are unissued. | set | A11, A12 | No direct seabed route or hidden embedded route is assumed. | | | | | |
| Services routing over water | Power containment | Covered UV-resistant GRP cable ladder/tray or heavy-duty ducts | A | A - undrawn: preliminary 300-450 mm shared power tray width, sized by cable fill and thermal calculation; secured covers, drainage and accessible pulling/inspection positions. Electrical cable itself is listed in Section 1. | m | A11, A12 | GRP avoids rapidly corroding ordinary galvanised tray in lagoon splash zones. | | | | | |
| Services routing over water | Data containment | Separate GRP tray or HDPE ducts | A | A - undrawn: preliminary 100-150 mm tray or 50-63 mm ducts; physical separation/barrier from power, with one spare duct where practicable. Final spacing to EMC and containment design. | m | A11, A12 | Separate accessible routes simplify upgrades and fault finding. | | | | | |
| Services routing over water |
| Services routing over water | Fixings and interfaces | 316L fasteners, suitable GRP brackets and isolation washers | A | A - undrawn: corrosion-compatible combinations; isolate dissimilar metals and prevent crevices where practical. Higher-alloy/nonmetallic components where exposure warrants. | set | A11, A12 | "Stainless" is not sufficient specification for every wet chloride location. | | | | | |
| Services routing over water | Thermal movement | Engineered pipe loops, sliding supports and anchor fittings | A | A - undrawn: allow PE movement using supplier coefficients; illustrative 30 m pipe at 30°C temperature change can move about 180 mm at 0.2 mm/m/°C. Do not rigidly clamp an entire jetty run. | set | A11, A12 | Sun exposure produces significant movement even when the supporting walkway is fixed. | | | | | |
| Services routing over water | Structural movement interfaces | Flexible service loops and approved movement couplings | A | A - undrawn: accommodate jetty joints, settlement and villa interfaces; cable bend radius, pipe pressure rating and fatigue duty govern the detail. Ordinary flexible hose is not the permanent sewage-main base. | set | A11, A12 | Prevents cracked fittings and pulled cable terminations at independently moving structures. | | | | | |
| Services routing over water | Shore/villa isolation | Accessible power disconnects, water/sewer isolation and labels | A | A - undrawn: isolate each branch without interrupting adjacent villas; arrange valves, meters and junctions where technicians can work from a safe access position. | set | A11, A12 | Allows occupied-villa maintenance and contains the consequences of a single failure. | | | | | |
| Services routing over water |
| Services routing over water | Service identification | UV-resistant labels, engraved tags, route markers and valve numbering | A | A - undrawn: identify both ends, branch points and isolation locations; coordinate with as-built drawings and resort maintenance numbering. | set | A11, A12 | Clear identification speeds repairs when replacement staff or outside contractors arrive by boat. | | | | | |
| Services routing over water | Maintenance access fittings | Removable containment covers, access-box hardware and lifting provisions | A | A - undrawn: accessible cable joints, valves and pump removal points; sizes matched to equipment replacement. Walkway structure and architectural access panels remain coordinated with their separate packages. | set | A11, A12 | Equipment must be replaceable without dismantling large areas of finished guest walkway. | | | | | |
| 10. NORMAL MALDIVES RESORT PRACTICE - FOUR MAJOR DECISIONS | | | | | | | | | | | | |
| Normal Maldives resort practice | AC type | Concealed ducted DX split or villa-scale VRF/mini-VRF | A | A - KV2 system unknown: ducted splits suit individual small villas; mini-VRF suits several independently controlled rooms. Enquiry base: split for A09/A12, mini-VRF for A10/A11. These are established available approaches, not evidence of KV2's installed system. | set | All four | Maldives contractors document split/mini-VRF/VRF resort installations; see ProAc resort projects. Concealed indoor equipment suits the ID intent. | | | | | |
| Normal Maldives resort practice | Hot-water type | Heat-recovery/heat-pump storage, solar-assisted storage or local electric storage | A | A - KV2 system unknown: there is no single universal arrangement. Central/cluster generation is attractive with nearby recovered heat; local storage avoids long circulation mains. Enquiry base is local heat-pump storage, with the listed substitutions. | set | All four | Actual Maldives projects include heat-pump conversion at Four Seasons Kuda Huraa, report p. 20 and solar hot water at Amari villas. | | | | | |
| Normal Maldives resort practice | Sewage from water villas | Short gravity collection followed by gravity, pressure or vacuum conveyance to shore | A | A - KV2 network unknown: select against actual jetty levels and the receiving network. Base is sealed duplex pressure lifting; vacuum is a complete network alternative; gravity is preferred only where surveyed falls work. | set | A11, A12 | Vacuum is recognised in URA's dedicated design guideline. None of these systems justifies untreated discharge beneath a villa. | | | | | |
| Normal Maldives resort practice | Pool plant location | Individual nearby service bay, with shared access where practicable | A | A - KV2 location unknown: practical enquiry arrangement is accessible local plant close to each pool. For water villas, use a dry protected bay/platform above verified marine design levels; below-deck placement is acceptable only if the complete access and flood design works. | set | All four | Short pipe runs help hydraulics, but guest noise, chemical segregation and replacement access govern the final location. This is an engineering recommendation, not a confirmed drawing detail. | | | | | |
| 11. URA APPROVALS, SUBMISSIONS AND COMPLETION RECORDS | | | | | | | | | | | | |
| URA approvals, submissions and com | Panel/SLD approval | ENE01 application and electrical design package | A | A - submission scope; drawings absent: triggered by the assumed >=63 A incomers. Submit SLD, A4 load calculations, phase balance, feeder/cable/protection schedules, owner identification, property documents, engineer appointment and applicable transformer/generator details. Include previous approvals for amendments. | set | All four and affected shared panels | Energy Act 18/2021; 2023 SLD guideline; 2024/G-14. Use the current ENE01 form, PDF pp. 1-2. | | | | | |
| URA approvals, submissions and com | Power-system design | ENE05 application and resort power-system report | A | A - submission scope; network unknown: submit new/amended generation and distribution design, demand assessment, source capacities, protection/earthing philosophy, SLDs, layouts and equipment particulars. Establish the existing approved system first. | set | All four - shared | Energy Act 18/2021 and 2026/R-57; ENE05 v2 identifies the owner, system location and responsible licensed engineer. | | | | | |
| URA approvals, submissions and com | Generator approval and operation | ENE05/ENE01 interfaces, registration and applicable operating authorisation | A | A - conditional on generator works: submit generator rating/data, installation, fuel/exhaust/ventilation details, switching/protection, tested revenue-grade metering and emergency-load arrangements. Obtain the applicable operating licence/permit before operation; confirm ENE07 applicability for non-utility self-generation. | set | Shared power facility | OLR Energy 2023/R-78 and amendments; Standby Generator Guideline 2024/G-7. Current URA energy forms include ENE07 and facility/operator applications. | | | | | |
| URA approvals, submissions and com | Solar interconnection | Net-metering application/agreement where applicable; ENE05/SLD amendments | A | A - conditional on PV: submit array/inverter data, protection, metering, source-control philosophy and connection design. Net metering applies where the relevant utility interconnection exists; it is not automatically the arrangement for a private island microgrid. | set | Shared power facility | Net Metering Regulation 2020/R-46; confirm the actual electrical relationship with the licensed network/operator. | | | | | |
| URA approvals, submissions and com | Renewable import relief | ENE02 duty-exemption application | A | A - conditional on eligible imports: submit product descriptions, technical literature and import/consignment documents required by the current form. This does not replace electrical design approval. | set | Shared PV/renewable scope | Separate commercial/import process; see the URA ENE02 form through the current URA form register if the download has changed. | | | | | |
| URA approvals, submissions and com | Cable/meter product acceptance | ENE04 / ENE03, where required | A | A - conditional on product approval status: confirm whether proposed imported cable and metering products already have accepted approvals; submit manufacturer data and applicable test certificates for new approval applications. | set | All four and shared infrastructure | These forms are listed separately in the URA energy approval register. | | | | | |
| URA approvals, submissions and com | Water-system approval | WTR03 and relevant system annexes | A | A - submission scope; water system absent: submit concept approval where required, EIA decision statement, design report, A3 layouts, source/demand/storage calculations, RO process/P&ID, distribution hydraulics, intake/brine details, equipment catalogues and supporting structural/electrical designs. | set | All four - resort system | Water and Sewerage Act 8/2020, 2021/R-23 and applicable 2022/R-90 connection provisions. Requirements appear in the WTR03 system annexes. | | | | | |
| URA approvals, submissions and com | RO registration and operating route | Facility registration/operator authorisation; WTR04 only where applicable | A | A - conditional on plant scope: identify whether the plant supplies the resort network or is genuinely standalone. Submit plant/site/capacity particulars, approval references and the operating documentation required for the applicable category. | set | Shared water facility | Do not automatically classify a networked resort RO as standalone. URA's water approval register distinguishes WTR04 from facility/operator applications. | | | | | |
| URA approvals, submissions and com |
| URA approvals, submissions and com |
| URA approvals, submissions and com | Waste-system design approval | WST03 | A | A - conditional on new/amended waste-system design: submit waste-generation basis, collection/transfer arrangements, facility layout, storage/treatment capacities, equipment data, drainage, fire and environmental controls. | set | Resort-wide | Separate from WST02: URA publishes a distinct WST03 design-approval form. | | | | | |
| URA approvals, submissions and com | Existing utility upgrades | GEN04, where applicable, plus sector amendments | A | A - existing approvals unknown: submit existing approved arrangement, proposed change, capacity justification and revised drawings; coordinate shutdown and connection arrangements with the resort operator. | set | All four - shared interfaces | Extension of an operating resort must be related to its existing authorisations; GEN04 is listed by URA. | | | | | |
| URA approvals, submissions and com | Professional endorsement | Licensed engineering drawings, calculations and signed submission sheets | A | A - required design service; absent from package: commission the appropriate licensed disciplines; provide engineer name, licence number and signature on submitted drawings/SLDs, with coordinated addresses, numbering and revisions. | set | All four and shared systems | Power-sheet endorsement is explicit in the URA SLD guideline, PDF p. 2. This enquiry schedule is not that endorsement. | | | | | |
| URA approvals, submissions and com | Emergency and fire coordination | Escape-lighting layouts, emergency-power schedule and fire-authority submission | A | A - undrawn: include escape routes and emergency lighting/power layouts with applicable generator/panel submission. Obtain building/fire acceptance separately; coordinate detector coverage, extinguishers and any fixed firefighting system. | set | All four and walkways | URA electrical approval does not establish complete building fire compliance. | | | | | |
| URA approvals, submissions and com | Completion documentation | As-built drawings, asset schedules, test records and O&M manuals | A | A - completion deliverable: prepare sector reports and separate annexes in the 2026 URA format; include CAD/PDF routes, pipe/cable sizes, equipment IDs, pump duties, settings, photographs, commissioning results, water-quality records, spares and maintenance instructions. | set | All four and shared systems | Follow the URA 2026 as-built guideline; record missing information explicitly and retain traceable operating/licensing records. | | | | | |
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| THERE ARE NO MEP DRAWINGS IN THE KV2 PACKAGE. No electrical layout, no single line diagram, no plumbing or drainage, no HVAC, no pool plant. This is a design-intent enquiry schedule built from the sanitary fixtures, ceiling fixtures and room areas that ARE on the interior-design drawings, plus normal Maldives resort practice and the URA regulatory requirements that govern utility work here. Quantities are deliberately blank - they cannot be established without a services design. Use this for budget rates, lead times and to scope the MEP consultant's brief. | | | | | | | | | | | | |
| STATUS KEY D = confirmed by the drawing information issued. A = assumed design intent or preliminary specification, absent from the package. ALT = a priced alternative to the item above it, not an addition. | | | | | | | | | | | | |
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| TERRABUILD GLOBAL | sales@terrabuildglobal.com | terrabuildglobal.com | WhatsApp / WeChat +86 188 2649 1416 | TBG-KV2-MEP-001 Rev 01 |
| Room D076, Shop 101, No. 14, Longdong Trade Street, Tianhe District, Guangzhou City, China | Registered in the People's Republic of China |