WHAT IS FSI (FLOOR SPACE INDEX)?

FLOOR SPACE INDEX (F.S.I)

It is the ratio of the gross floor area of the all floors including area of all walls, except areas specifically exempted under these regulations to the total area of the plot.

FSI x Plot area = Total Built up area

For example, If you have a 1000 sq.m plot with 30 ft wide road and permissible FSI is you can make premium avail FSI of 20 %,
     1.8 x 20% x 1000 = 2160 sq.m

The following spaces shall not be counted towards computation of F.S.I.

1. Parking spaces without any enclosures and partitions of any kind, with clear height of 2.4 mts. and in case of slabs with beams, height should not exceeds 2.8 mts.
2. Spaces of hollow plinth with maximum clear height of 2.8 mts in addition to depth of beams as per structural requirements in residential buildings only (not even in mixed development) at ground level without any enclosures/walls and partitions in any form excluding shear walls as per structural requirements.
3. Interior open spaces and ducts required under these Regulations subject to maximum 4 % of the builtuparea . Canopy and Architechtural projections not to be used for any other purpose
4. Basement exclusively used for required parking with maximum clear height of 2.6 mts excluding beams.
5. Security Cabin up to 4 sq.mts
6. Weather shed up to 0.60 mt width.
7. Stair case with maximum intermediate landing width equal to the width of stair, maximum landing width at floor level shall be twice the width of stairlift, lift well with lift cabin, stair cabin, lift landing of lift well and water tank.
8. Open air space/chowk required under this regulation in Walled City and Gamtal.

9. Electric room as specified by S.E.C. or G.E.B.

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