RAJUK FAR Calculator 2025 | Floor Area Ratio & Building Rules Dhaka
Free official online calculation tool for RAJUK Detailed Area Plan (DAP 2022–2035) and Dhaka Building Construction Rules (Imarot Nirman Bidhimala). Calculate Floor Area Ratio (FAR), Maximum Ground Coverage (MGC), Mandatory Open Space, Permissible Built Area, and Front/Side/Rear Setbacks instantly for residential, commercial, and mixed-use plots in Dhaka, Bangladesh.
Key Features & Calculations
- Base & Bonus FAR Calculation: Compute allowable FAR based on plot area, road width (ft/m), occupancy type (A1, A2, A3, B, C, D, E, F, G, H, I, J), and DAP planning zone.
- Maximum Ground Coverage (MGC): Determine maximum ground coverage percentage and minimum contiguous permeable open space required for rainwater recharge.
- Setback Requirements: Automatic front, side, and rear setback calculations based on building height and road width per RAJUK rules.
- Block Housing Scheme: Calculate bonus FAR, increased ground coverage (up to 80%), and open space incentives for block housing developments over 8 Kathas / 0.5 Acre.
- Car Parking & Mezzanine Rules: Auto-calculate required car parking spaces, motorcycle slots, and driver waiting room dimensions.
Frequently Asked Questions (FAQ)
কত কাঠা জমিতে কত তলা করা যাবে? (Floor Count per Katha)
Allowable storeys depend on allowable FAR, road width, and plot size under DAP 2022-2035 regulations. Higher road width and larger plot area yield higher FAR and total built area.
What is FAR in RAJUK Building Rules?
Floor Area Ratio (FAR) is the ratio of total gross floor area to the total site area. Total Allowable Floor Area = FAR × Plot Area.
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