These are Kolkata's rules, not West Bengal's
verbatim
These rules apply to all building activities in Kolkata, other than activities referred to in section 450 of the Kolkata Municipal Corporation Act, 1980. West Bengal does not have one state-wide building code — other municipalities have their own rules, and nothing on this page carries beyond the KMC area.
KMC Building Rules 2009, Rule 1(2)
Ground coverage, residential — plot up to 200 m²
verbatim
60% maximum ground coverage.
KMC Building Rules 2009, Rule 70(1) Table 4
· Plots up to 200 m²
| Plot area up to (m²) |
200 |
| Ground coverage (%) |
60 |
Ground coverage, educational
verbatim
50% for a plot up to 200 m², 45% for 500 m² or more, interpolated in between.
KMC Building Rules 2009, Rule 70(1) Table 4
· Educational
Ground coverage, all other occupancies
verbatim
40%, whatever the plot size, for institutional, assembly, mercantile (retail), industrial, storage and business occupancies alike — the one figure in Table 4 that does not move with plot size.
KMC Building Rules 2009, Rule 70(1) Table 4
· Commercial
Ground coverage, residential — plot 500 m² or more
verbatim
50% maximum ground coverage. Between 200 m² and 500 m² the percentage is not banded — it is worked out by direct interpolation between 60% and 50%, so a 350 m² plot lands halfway.
KMC Building Rules 2009, Rule 70(1)-(2), Table 4
· Plots over 500 m²
| Plot area from (m²) |
500 |
| Ground coverage (%) |
50 |
Extra ground coverage for parking and services
verbatim
On plots above 3,000 m² and up to 5,000 m², a further 10% ground coverage is allowed exclusively for car parking, ramps, stairs, lifts and building services, of which services may take no more than 3%. Above 5,000 m² the allowance is 15%, of which services may take no more than 5%.
KMC Building Rules 2009, Rule 70(4)-(5)
· Plots over 3000 m²
Ground coverage on plots over 5000 m²
verbatim
45% for residential buildings and 35% for every other occupancy including mixed use, overriding Table 4.
KMC Building Rules 2009, Rule 70(3)
· Plots over 5000 m²
| Plot area from (m²) |
5000 |
| Ground coverage (%) |
45 |