Height is capped twice over: by the regime the plot falls under, and by the width of the road that reaches it. The lower of the two governs.
How tall am I allowed to build?
Habitable floor height 2.75–3.50 m. Overall height ≤30.00 m (plain) / ≤25.00 m (hilly, incl. sloping roof; NBC 2016 hilly = >600 m MSL or avg slope 30°), measured plinth to ridge. Roof/dormer slope ≥30°; roof colour post-office red / grey green / natural material.
Appendix-7 (2022) Reg 12 — and 4 related rules below.
The rules — all 5
Floor height & building height
verbatim
Habitable floor height 2.75–3.50 m. Overall height ≤30.00 m (plain) / ≤25.00 m (hilly, incl. sloping roof; NBC 2016 hilly = >600 m MSL or avg slope 30°), measured plinth to ridge. Roof/dormer slope ≥30°; roof colour post-office red / grey green / natural material.
Appendix-7 (2022) Reg 12· Appendix-7 (projects over 2,500 m²)
Floor h min
2.75
Floor h max
3.5
Max h plain
30
Max h hilly
25
Roof slope min deg
30
Height capped by abutting path
verbatim
Path <3.00 m → 10 m; 3.00–<5.00 m → 13 m; a ≥5.00 m road imposes no path-based height cap (height then governed by the general limit).
Appendix-1 General Reg 2 (portal)· Appendix-1 (general buildings)
Caps
[[3,10],[5,13]]
Habitable room height
verbatim
Habitable/office rooms 2.75–3.50 m floor-to-ceiling.
Appendix-1 General Reg 7· Appendix-1 (general buildings) · Appendix-7 (projects over 2,500 m²) · Appendix-8
Min m
2.75
Max m
3.5
Plinth height
verbatim
Maximum plinth level height 2.00 m.
Appendix-1 General Reg 4· Appendix-1 (general buildings) · Appendix-7 (projects over 2,500 m²) · Appendix-8
Max m
2
Sloping roof (hilly)
verbatim
Mandatory sloping roof in hill areas (>600 m MSL or ≥30° slope): CGI/GI/slate, post-office red / forest green / natural slate; ridge ≤2.75 m above eaves; dormers below main ridge. Roof-top solar @ 12 m² per kWp.
Appendix-1 General Reg 8· Appendix-1 (general buildings) · Appendix-7 (projects over 2,500 m²) · Appendix-8
Ridge max m
2.75
Solar m2 per kwp
12
Worked example — a 500 m² plot on a 9 m road
Computed live by the same engine that produces the drawings — not a stored example.
Drawn square for clarity. A real tatima is not square — that is what the tracer is for.
Regime
Appendix-1 (General Building)
FAR
1.75
Setbacks (F / R / sides)
3 / 2 / 2 m
Buildable footprint
319 m²
Height cap
21 m
Storeys
3
Permissible built-up
875 m²
Parking required
9 ECS
500 m² × FAR 1.75
= 875 m² permitted.
The 319 m² footprint over
3 storeys could hold
956 m², so FAR is the
binding constraint — the height allowance is not fully usable here.
Work it out for your own plot
Permissible floor area, coverage and height for your plot — straight from the HP slabs.
