CONCEPT DESIGN — OWNER-CONFIRMED 50 FT × 72 FT PLOT — SUBJECT TO VERIFIED SURVEY, PROFESSIONAL REVIEW AND AUTHORITY APPROVAL — NOT FOR CONSTRUCTION.

PURBACHAL GREEN RESIDENCE

Climate-Responsive B+G+9 Residential Apartment Concept on a 5.00 Katha (50'-0" × 72'-0" = 3,600 sq ft) Plot in Purbachal, Dhaka — Integrating Deep Permeable Monsoon Gardens, Cascading Planter Balconies, Rooftop Organic Agro-Forestry & 10.45 kWp Net-Metered Solar PV.

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Building Configuration
B1 + G + L1–L9 + Roof
1 Basement + 10 Above-Ground Storeys | 9 Single-Family 3-Bedroom Apartments (1 Per Floor)
Owner-Confirmed Plot
50'-0" × 72'-0" (5.00 K)
3,600.00 sq ft (334.45 sq m) | 41'-6" × 51'-0" (2,116.50 sq ft) R3 Superstructure Envelope
True Permeable Natural Soil
35.01% (1,260.50 sq ft)
100% Undisturbed Natural Soil with Zero Basement Below (Nearly 2× the 18.75% Statutory Minimum)
Net-Metered Solar & Agro-Roof
10.45 kWp + 391.5 sf Beds
19 × 550 Wp Bifacial Solar PV (~13,190 kWh/yr) + 3 Raised Organic Rooftop Planter Beds

Exterior Architectural Perspectives (Revision R3 — 50'-0" × 72'-0" Plot)

Sustainable Architecture & Engineering Highlights

Single-Family Full-Floor Privacy (L1–L9)

Each upper storey houses a single three-bedroom family residence (1,684.50 sq ft unit gross / 1,277.02 sq ft net internal carpet) with four-sided daylight, cross-ventilation, and acoustic separation from the lift and stair core.

Passive Monsoon Cross-Ventilation & Shading

South-facing family dining verandas capture prevailing summer breezes over the 700 sq ft rear natural soil garden, while deep overhangs and vertical terracotta fins shield East/West glazing.

Integrated Water & Renewable Energy Loop

196.63 sq m rooftop rainwater harvesting feeds a 15,000 L storage cistern and groundwater recharge pit; basement aerobic STP graywater irrigates the 612 sq ft balcony planters and 391.50 sq ft rooftop agro-beds.