Floor Area Calculator Architecture & RERA
Multi-story structural floor area ledger calculating Gross Floor Area (GFA), circulation loss, and floor-by-floor yields.
Multi-Storey Building Stack
GFA & Efficiency
flrs
1 Floor
15 Floors
30 Floors
sq.ft
1,000 sq.ft
10,000 sq.ft
20,000 sq.ft
sq.ft
sq.ft
%
8% (Residential Core)
16% (Standard)
25% (Commercial Core)
₹
Total Gross Floor Area
40,500 sq.ft
3,762.57 sq.m
Net Usable Carpet
34,020 sq.ft
84.0% space efficiency
Building Storeys
G + 7 Floors
+ 1 Basement Level
Est. Civil Budget
₹9.72 Cr
At ₹2,400/sq.ft BUAVertical Floor Plate Elevation Stack
Interactive ProfileFloor-by-Floor Area & Structural Schedule
| Level / Storey | Gross Plate (Sq.Ft) | Circulation / Core | Net Carpet Area | Est. Civil Cost |
|---|---|---|---|---|
| Basement Parking & Utilities | 4,500 | Driveways & Ramps | N/A (Parking) | ₹1.08 Cr |
| Ground Entrance Foyer / Stilt | 4,500 | 720 sq.ft | 3,780 sq.ft | ₹1.08 Cr |
| Typical Floors 1 to 7 (7 Storeys) | 31,500 | 5,040 sq.ft | 26,460 sq.ft | ₹7.56 Cr |
| Total Gross Floor Area (GFA) | 40,500 sq.ft | 5,760 sq.ft | 30,240 sq.ft | ₹9.72 Cr |
Gross Floor Area (GFA) Definition: Defined under standard National Building Code (NBC) as the aggregate area of all floors inside the external walls, including stairs, lift shafts, ducts, and machine rooms. Typical architectural space efficiency for modern RCC structures ranges between 80% to 85% after subtracting vertical cores and egress passages.