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Land & Survey

FAR/FSI Calculator (2026) – Nepal Municipal Bylaws

Expert Guide
Babu

Determine the Floor Area Ratio (FAR) or Floor Space Index (FSI) to verify municipal compliance.

Architectural blueprint showing FAR/FSI calculations for building permit approval

⚡ Quick Answer

FAR = Total Floor Area / Plot Area. In residential Nepal, FAR limits are usually 1.5 to 2.5. Exceeding this will result in permit rejection. For map approval support, visit pro.nirmansutra.com.

🛠️ How It Works

  • •Enter the net plot area (after road deductions).
  • •Enter the aggregate floor area of all stories.
  • •Check your result against our Nepal Municipal Bylaws Summary.

📐 Calculation Formula

FAR = Total Built-up Area / Net Plot Area
Technical Diagram for plot-area-calculator

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⚠️ Common Mistakes to Avoid

  • ✕Including the basement area used for parking, which is usually exempt from FAR in many municipalities.
  • ✕Forgetting to deduct the road-widening area from the gross plot area before calculating the ratio.
  • ✕Miscalculating the "Built-up" area by excluding cantilevered balconies or porches.

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❓ Frequently Asked Questions

FAR limits vary by zone (Residential, Commercial, Institutional). For most residential areas in Kathmandu, it ranges from 1.5 to 2.5.
It is the sum of the floor areas of all stories of the building. Typically, basements used for parking or utilities are excluded.
Exceeding FAR limits will result in the rejection of your building permit (map approval) or heavy fines/demolition orders later.

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