FSI is
- APlot area/total area of all floors
- Btotal area of all floors/plot areaCorrect
- CPlot area/area of one floor
- Darea of one floor/plot area
Solution
Concept
Definition of Floor Space Index
Formula
NONE
Step-by-step solution
1. Floor Space Index (FSI) or Floor Area Ratio (FAR) measures the intensity of building development on a land parcel. 2. It is calculated as the ratio of the total built-up floor area across all floors to the total area of the plot. 3. Therefore, FSI = total area of all floors / plot area. Answer: B
Explanation
Floor Space Index (FSI) represents the ratio of the total built-up area across all floors of a building to the total area of the plot on which it is built. It is used by urban planners to regulate construction density and land usage efficiency. Therefore, FSI is defined as the total area of all floors divided by the plot area.
Why the other options are wrong
A) This represents the inverse ratio of Floor Space Index. C) This gives the ratio of plot area to a single floor area rather than total built-up area. D) This represents the Ground Coverage ratio rather than Floor Space Index.
Shortcut
Floor Space Index (FSI) equals Total Area of All Floors divided by Plot Area.
Common mistake
Inverting the FSI ratio by dividing plot area by total floor area instead of floor area by plot area.
Correct answer: B) total area of all floors/plot area