Setback Calculator Nepal
Calculate building setback in Nepal based on road width, plot size and municipal rules. Use it before house design, naksa pass planning, or checking how much of a plot can actually be built on.
Setback Rules in Nepal
Building setback is the open space required between your building and the legal plot or road reference line. In Nepal, the final setback depends on road right of way, municipality bylaws, plot use, building height, and whether the land is residential, commercial, institutional, or mixed use. The defaults here are indicative residential planning values for early house design checks.
Road Width vs Setback Table
| Road category | Indicative ROW | Front setback used | Planning note |
|---|---|---|---|
| Less than 6 m road | 4 m | 1.5 m | Confirm official road right of way at the ward before drawing. |
| 6 – 8 m road | 6 m | 1.5 m | Confirm official road right of way at the ward before drawing. |
| 8 – 12 m road | 8 m | 3 m | Confirm official road right of way at the ward before drawing. |
| Greater than 12 m road | 9 m | 6 m | Confirm official road right of way at the ward before drawing. |
FAR vs Setback Difference
FAR controls total built-up floor area across all floors. Setback controls where the building footprint can sit on the plot. A plot can have enough FAR on paper but still become hard to design if road setback, side setback, rear setback, parking, light, and ventilation leave a narrow buildable rectangle.
Kathmandu, Lalitpur and Bhaktapur Examples
Kathmandu Valley municipalities often check road width, official ROW, side/rear open space, ground coverage, FAR, height, and parking together during naksa pass review. Corner plots, narrow access roads, river corridors, heritage zones, slopes, and commercial use can change the final requirement, so use this calculator for early planning and confirm the final interpretation with your municipality.
Common Mistakes Before Naksa Pass
- Measuring setback from the existing road edge instead of official ROW.
- Buying a narrow plot without checking the buildable width after side setbacks.
- Assuming FAR alone decides how large the house can be.
- Ignoring corner-plot, slope, or commercial-use conditions.
- Finalising room layouts before confirming ward-level setback rules.
Setbacks vary outside the valley and for commercial or institutional plots, so always confirm with your local ward office and a licensed engineer before construction.
FAQ
What is the front setback in Nepal for an 8 metre road?
For roads between 8 and 12 metres in Kathmandu Valley, the typical front setback is 3 metres from the right of way. The exact number depends on the municipal ward's zoning, so confirm at your ward office before naksa pass.
What is right of way (ROW) in Nepal?
Right of way is the legally protected width of a road that no permanent construction can occupy. For an 8-metre wide road, the ROW is usually 8 metres total. Setbacks are measured from the edge of this ROW, not from your existing boundary wall, so confirm the official ROW first.
Are side and rear setbacks always the same?
No. Side and rear setbacks vary by ward and plot type. A common starting point is 1.5 metres on each side and 1.5 metres at the rear for residential plots, but corner plots, hilly terrain, and commercial zoning can change these numbers. Always check with your municipality before finalising drawings.
Do setbacks count toward FAR and ground coverage?
Setbacks define the buildable footprint, but FAR (Floor Area Ratio) and ground coverage are calculated against the total plot area, not the buildable footprint. So a strict setback can leave you unable to use your full FAR allowance even if you go up to the maximum allowable height.