FSI – Floor Space Index
December 4, 2010 26 Comments
FSI (Floor Space Index) is also known as Floor Area Ratio. In simple terms FSI for a project can be obtained by dividing the total carpet area of all flats in the project divided by the land area of the project. Consider an example.
FSI Calculation Example
Builder X is constructing a project with 100 flats of 800 sq ft, 200 flats of 1200 sq ft and 400 flats of 1400 sq ft carpet area. The size of the plot is 5 acres. Then the FSI is calculated as under.
Total area of flats in Square Feet = 100×800+200×1200+400×1400 = 8,80,000 Sq Ft
Area of the project is 5 Acres 1 Acre = 43,560 sq foot Therefore 5 acres = 2,17,800 Sq Ft
The FSI for this project will be FSI= (8,80,000/2,17,800) = 4.04
All development including clubs, gymnasium etc is included in the calculation
FSI for Noida
FSI was increased in Noida recently. On September 6, 2010 the authority decided to increase FSI from 2.5 to 3. Green buildings can now have a FSI of 3.75 up from 2.75. In Noida, Greater Noida and YEIDA plinth area is used instead of carpet area for calculating FSI