Coastal Fold – Grand Design

A contemporary Jamaican retreat carved into the hillside, kissed by sea breezes and concealed by nature.

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Architectural Description:

“Set against the emerald hills of Jamaica’s northern coastline, ‘Coastal Fold’ is no ordinary home. It’s a subterranean sanctuary — bold in vision, unapologetically minimalist, and yet wholly sensitive to its environment. Like a geological fold in the earth, the house doesn’t impose itself upon the landscape — it becomes part of it.

From the road above, it all but disappears — save for the occasional glint of glass or the rustle of a frangipani bush on the roof terrace. But venture down the winding stone path and you’re greeted with a sunken courtyard, a concrete exoskeleton shaped like origami, opening up to the cerulean Caribbean Sea.

Inside, the palette is tactile and honest: polished concrete floors meet smooth, lime-washed walls; timber cabinetry floats like sculpture; and light dances off every surface thanks to carefully placed skylights and glazing. It’s a modernist cave — cool, clever, and profoundly calm.

Built to endure hurricanes, withstand salt air, and embrace both sun and shade, this is a future-proof Jamaican dwelling. It whispers luxury, but it shouts resilience. Truly, a Grand Design — island edition.”

A comprehensive set of specifications for building a modern hillside concrete home near a beach in Jamaica. This includes architectural, structural, electrical, plumbing, and sustainability components — from start to finish.

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PROJECT OVERVIEW

• Project Type: Residential
• Location: Hillside near a beach in Jamaica (tropical marine climate)
• Design Style: Modern minimalist, earth-sheltered with green roof
• Primary Materials: Reinforced concrete, glass, treated timber, stainless steel

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1. ARCHITECTURAL DESIGN

Floor Plan (Customizable Layout)

• Bedrooms: 3 (with ocean-facing views)
• Bathrooms: 2.5 (one ensuite, one shared, one powder room)
• Living Area: Open-plan living/dining/kitchen with large sliding glass doors
• Outdoor: Patio with dining space, green roof terrace, outdoor shower
• Bonus Spaces: Storage room, mechanical/electrical room

Features

• Concrete retaining walls built into slope
• Slanted green roof (native plants) for insulation
• Energy-efficient windows (low-E, hurricane rated)
• Sunken garden or lightwell for airflow and light

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2. STRUCTURAL DETAILS

Foundation

• Type: Reinforced concrete raft foundation
• Waterproofing: Membrane + drainage system under slab

Walls

• Material: 8″ reinforced concrete (RC) walls
• Finish: Exterior – board-formed concrete; Interior – plastered and painted

Roof

• Type: Reinforced concrete slab with waterproofing
• Insulation: Rigid insulation + waterproof membrane
• Green Roof Layers:
  • Root barrier
  • Drainage board
  • Filter fabric
  • Growing medium (lightweight soil)
  • Native plants (salt and wind resistant)

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3. ELECTRICAL SYSTEM

Power Supply

• Main: JPS 220/110V dual feed
• Backup: Solar panel system (8 kW) + 10 kWh battery storage + auto transfer switch

Wiring

• Conduits: PVC/EMT in slab and walls
• Breaker Panel: 200A service with surge protection

Lighting

• LED recessed ceiling lights
• Outdoor IP65-rated pathway and wall lights
• Smart lighting control (Wi-Fi enabled)

Outlets & Switches

• GFCI outlets in wet areas
• USB-integrated outlets in bedrooms and kitchen

Extras

• CCTV + alarm system pre-wired
• Home automation hub-ready
• Ethernet points (Cat6) in main living, office, and all bedrooms

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4. PLUMBING SYSTEM

Water Supply

• Main: NWC connection with sediment filtration
• Storage: 1,000-gallon underground water tank
• Pump: Pressurized system with pressure tank
• Hot Water: Solar water heater + backup tankless gas heater

Drainage & Waste

• Grey Water: Filter + reuse for landscaping
• Black Water: Septic tank + soak-away system (eco-designed)
• Stormwater: French drains, roof runoff directed to landscape swales

Fixtures

• Low-flow faucets, toilets, and shower heads
• Outdoor shower with stainless steel fixtures

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5. SUSTAINABILITY FEATURES

• Passive cooling via cross ventilation and earth insulation
• Rainwater harvesting system
• Solar panels with battery storage
• High-performance glazing (UV, salt-air protection)
• Use of local stone/timber where possible
• Native landscaping (xeriscape)

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6. CONSTRUCTION PHASES

Phase 1: Pre-Construction

• Topographic survey
• Soil testing and structural analysis
• Permitting via Jamaica’s local Parish Council & NEPA

Phase 2: Site Prep & Foundation

• Excavation
• Formwork and reinforcement
• Waterproofed concrete foundation

Phase 3: Structural Shell

• RC wall and roof construction
• Slab waterproofing
• Window/door frame setting

Phase 4: Services Rough-in

• Plumbing and electrical conduit installation
• HVAC ventilation ducts (optional A/C zones)
• Solar + water system base install

Phase 5: Finishes & Fixtures

• Internal plaster and painting
• Floor finish: polished concrete / tiles
• Fixtures, appliances, cabinetry

Phase 6: Landscaping + Handover

• Green roof installation
• Pathway and patio finishing
• Testing systems + commissioning

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REQUIRED PROFESSIONALS

• Registered Architect (Jamaica)
• Civil/Structural Engineer
• Licensed Electrician
• Licensed Plumber
• Green Building Consultant
• Quantity Surveyor (for cost management)

Disclaimer: This article is for informational purposes only and does not constitute legal or financial advice. Please note: Jamaica Homes is not authorized to offer financial advice. The information provided is not financial advice and should not be relied upon for financial decisions. Consult a regulated mortgage adviser for guidance.