FSI / FAR Calculator
Floor Space Index (FSI) — also called FAR — sets the maximum built-up area allowed on a plot. Varies by city / zone.
Allowable Built-up
Plot: 1,000 sqft (92.90 m²)
FSI: 1.33
Max built-up area: 1,330 sqft
Formula: Built-up = Plot area × FSI. Excludes balcony / staircase / lift well (rules vary by ULB).
Typical FSI in Major Indian Cities
| Mumbai (Island) | 1.33 |
| Mumbai (Suburb) | 2.5 (with premium up to 5) |
| Delhi (Residential) | 1.2 – 3.5 |
| Bangalore | 1.75 – 3.25 |
| Pune (PMC) | 1.1 (base) + TDR up to 3 |
| Chennai (CMDA) | 1.5 – 2 |