Built-up Area & Plinth Sizer Calculator
Compute total plinth footprints, analyze wall envelope deductions, and evaluate FAR/FSI multi-floor utilization
Net clear internal floor area
Base construction or market price
Private open/semi-covered spaces
Enclosed ducts within plinth
Total Plinth / Built-up Area
1,199 sq ft
111.4 sq m • 79.2% Usable Carpet Ratio
Wall Envelope Consumption
114.0 sq ft
9.5% of total built-up area
Balconies & Service Ducts
135.0 sq ft
110 sq ft balcony + 25 sq ft shafts
Total Built-up Valuation
$623,480
At $520.00 / sq ft built-up
Effective Rate on Carpet Area
$656.29 / sq ft
+26.2% premium over quoted rate
Feet edge-to-edge
Feet edge-to-edge
Inches (9″ brick / 230mm)
Extended past outer structural line
Deducted from plinth footprint
Structural Plinth (Built-up) Area
1,360.0 sq ft
126.3 sq m • Outer Footprint: 1,275.0 sq ft + 85.0 sq ft projections
Clear Internal Enclosed Floor
1,168.5 sq ft
Floor space within external envelope
Exterior Wall Area Footprint
106.5 sq ft
Structural masonry envelope volume
External Running Perimeter
145.0 ft
44.2 meters linear boundary
Wall Space Drag Percentage
8.35%
Outer wall area ÷ Outer footprint
Municipal zoning density index
Maximum allowable building footprint
G + 3 typical residential
Average plinth per floor level
Stilt parking, lift shafts, generator rooms
Total Project Built-up Area
5,750 sq ft
Consumed FAR: 1.69 of 1.75 Permissible (Within Limit)
Maximum Permissible Built-up
5,600 sq ft
3,200 sq ft plot × 1.75 FAR
Ground Coverage Utilized
42.2%
1,350 sq ft plinth (50.0% max allowed)
FAR Countable Built-up Area
5,400 sq ft
Excludes 350 sq ft exempt areas
Remaining Unutilized Built-up
+200 sq ft
Surplus FAR potential remaining