1. What is Floor Space Index?

Floor Space Index (FSI), also known as Floor Area Ratio (FAR), is a critical urban planning parameter that determines the maximum permissible floor area that can be built on a plot. It is calculated as the ratio of total floor area to the plot area.

2. How Does the Calculator Work?

The calculator uses the FSI formula:

Where:

• Total Floor Area — Sum of all floor areas in the building (m²)
• Plot Area — Total area of the land plot (m²)

Explanation: FSI is a dimensionless number that indicates how intensively a piece of land is being used. Higher FSI values indicate more dense construction.

3. Importance of FSI Calculation

Details: FSI is crucial for urban planning, zoning regulations, and determining the building potential of a property. It helps maintain balanced development, control population density, and ensure adequate open spaces in urban areas.

4. Using the Calculator

Tips: Enter total floor area and plot area in square meters. Both values must be positive numbers. The calculator will compute the FSI ratio.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical FSI value?
A: FSI values vary by location and zoning regulations. In dense urban areas, FSI might be 3-5, while in suburban areas it's typically 1-2.

Q2: Does FSI include basement areas?
A: This varies by local regulations. In some areas, basements are excluded from FSI calculations if used only for parking or utilities.

Q3: How does FSI affect property value?
A: Higher FSI typically increases property value as it allows for more construction, but it's balanced by infrastructure requirements and zoning laws.

Q4: Can FSI be transferred between properties?
A: Some municipalities allow Transfer of Development Rights (TDR), where FSI can be transferred from one property to another.

Q5: How is FSI different from ground coverage?
A: Ground coverage refers to the percentage of plot area covered by building footprint, while FSI considers the total built-up area across all floors.