Round Front House — 12 x 15ft | Triangle in Curve | Map Door

3 Storey, 3 Bedroom, Large Living Room with 80 inch TV Wall

01 — Site & Constraints

12′ × 15′

Plot

3.66m × 4.57m

12ft × 15ft

Footprint

180 sq ft

16.7 m² per floor

Stack

3 Storey

540 sq ft total

Extremely compact. 3 bedrooms in 180 sq ft footprint only works vertically. This board solves for the given size, but for comfort in Ghana we strongly recommend scaling to 12m × 15m if land allows.

Hot-humid orientation

Long axis East-West. Round front faces North for soft light. Cross-ventilation via stair void + louvered rear. Deep 600mm overhang on curve to cut rain & sun.

• Plot allows zero side setback — build party walls.
• Stair in middle = light well + stack ventilation.
• Flat RC roof with 2% fall + waterproof membrane.

02 — Floor Stack

first Floor • 12′ × 15′N ↑

Primary SuiteQueen • faces curve • triangle window

WICEnsuite

Stair void

Primary suite in the curve

Curve belongs to bedroom. Triangle window becomes headboard light. Walk-in is 4′ deep, uses curve thickness.

• Bed— Queen against straight wall, faces curve
• Triangle— Perforated inner skin or recessed plaster with LED
• Closet— 600mm deep, open wardrobe, curve shelf
• Ensuite— 900 × 1500, fan to light well

03 — Front Elevation Detail

R = 6′ • Curve Beam

Round + Triangle — two layers

Outer curve is structural RC beam following radius. Inner triangle is independent screen — steel frame with perforated aluminium or 12mm MDF with backlit plaster recess.

Structure

200×300 RC curved beam, 150mm block infill, 20mm render, deep drip groove.

Triangle

40×40 SHS frame, laser-cut 3mm Alu, 3000K LED strip in recess, dimmable.

Day: matte plaster triangle reads as shadow. Night: perforation glows, no direct glare to street. Keep triangle 150mm inset from curve face for depth.

04 — Entrance Door • Map Pattern

CNC • 900×2100

Map Door

Abstract topography, not literal map

CNC routed 18mm marine ply or HPL panel, stained walnut. Lines are 1.2mm V-groove, triangle zones highlighted in thin brass inlay or violet-tinted epoxy.

Frame40×60 mild steel, powder coat matt black

FinishOsmo oil + 2K clear for humidity

DetailInset LED 2700K at jamb, washes grooves

Pattern files: export SVG contours from QGIS or use generative topo lines. Keep density low near handle for hand contact.

05 — Living Room • 80″ TV Wall

Viewing 10ft • 3.05m

Straight internal wall — 2.2m clear

80″ • 16:9 • 1771 × 996 mm

Ventilated • 900mm H

↑ 650mm floor to TV center ideal for low sofa

Section

10ft viewing

Avoid west glass. Use blackout + sheer.

Mounting

Fixed slim mount, center at 1050–1100mm AFFL. Recess 40mm conduit for HDMI + power behind TV.

Acoustics

Curve behind sofa helps diffusion. Add rug + curtains. No TV on curved wall — image distortion + glare.

Power & Air

2× double socket behind credenza, 1× behind TV. Split AC high on side wall, not blowing across screen.

06 — Materials & Build Notes for Ghana

Walls

150mm sandcrete blocks, 15mm render both sides, acrylic paint

Structure

RC frame, 200mm columns at corners, curved beam 200×300

Windows

Aluminium sliding, 5mm tint + burglar bars, 600mm sill

Roof

Flat RC slab, 2% fall, bitumen membrane + screed + tiles

Overhang

600mm on curve, aluminium coping, concealed gutter

Floor

Porcelain 600×600 light stone, non-slip at entrance

Climate specifics

• Cross ventilation via stair light-well with high louver
• Provision for 2× split AC + ceiling fan points per floor
• Waterproof curve properly — add water bar + extra render coat
• Raise ground floor 450mm above road to handle flooding

Deep overhangNo west glazingLED 2700–3000K

Concept only. This board is a design exploration for a 12ft × 15ft plot. Needs licensed architect and structural engineer review, soil test, and local authority approval before building. Dimensions to be verified on site.b

Round Front • Triangle in Curve • Map Door • 80″ TV Wal

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