1. What is Floor Space Ratio (FSR)?

Definition: FSR is a planning control that determines the maximum floor area that can be built on a piece of land.

Purpose: It helps regulate building density and maintain neighborhood character by controlling the relationship between building size and land area.

2. How Does the FSR Calculator Work?

The calculator uses the formula:

Where:

• \( FSR \) — Floor Space Ratio (unitless)
• \( Total\ Floor\ Area \) — Sum of all floor areas (square meters)
• \( Site\ Area \) — Total land area (square meters)

Explanation: The total floor area of all floors is divided by the site area to determine the density ratio.

3. Importance of FSR Calculation

Details: FSR is crucial for urban planning, zoning compliance, and ensuring buildings are appropriately scaled for their locations.

4. Using the Calculator

Tips: Enter the total floor area (sum of all floors) and site area in square meters. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical FSR value?
A: FSR varies by location and zoning, but common values range from 0.5 for low-density residential to 5.0+ for high-density urban areas.

Q2: Does FSR include outdoor areas?
A: No, FSR typically only includes covered floor areas. Outdoor spaces like balconies may or may not be included depending on local regulations.

Q3: How is FSR different from lot coverage?
A: Lot coverage measures building footprint as a percentage of site area, while FSR considers total floor area across all levels.

Q4: Can FSR be greater than 1?
A: Yes, an FSR > 1 means the total floor area exceeds the site area (common in multi-story buildings).

Q5: Where can I find the allowed FSR for my property?
A: Check your local zoning regulations or planning department website for specific FSR limits in your area.