The approach decides more than convenience. Below a certain width it caps the building height; with no motorable road at all, a parking floor cannot be built.
What road do I need to reach the plot?
Access ≥5.00 m (population ≤1000) / ≥6.00 m (>1000). Low-rise low-density isolated group housing may use 3.00 m with overall FAR ≤1.0 and building height 10 m. If the abutting approach road is 3 m wide, the applicant shall surrender 2 m of land along its complete length to achieve the 5 m minimum.
Appendix-7 (2022) Reg 9(i)–(ii) — and 3 related rules below.
The rules — all 4
Means of access from main road
verbatim
Access ≥5.00 m (population ≤1000) / ≥6.00 m (>1000). Low-rise low-density isolated group housing may use 3.00 m with overall FAR ≤1.0 and building height 10 m. If the abutting approach road is 3 m wide, the applicant shall surrender 2 m of land along its complete length to achieve the 5 m minimum.
Appendix-7 (2022) Reg 9(i)–(ii)· Appendix-7 (projects over 2,500 m²)
Upto 1000 m
5
Above 1000 m
6
Lowrise m
3
Lowrise far
1
Lowrise height m
10
Site access from the abutting public road
verbatim
The scheme must take its access from the public road abutting the site: gate on the road-facing boundary, internal 5 m road connecting the gate to every block (also the fire-tender route).
Appendix-7 (Traffic & Transportation band) + NBC Part 4 access· Appendix-7 (projects over 2,500 m²) · Appendix-1 (general buildings)
Internal road m
5
Internal access width by length
verbatim
Hilly: 5.00 m up to 400 m length, 7.50 m beyond. Plain: 5.00/250 m, 7.50/400 m, 9.00/1000 m, 12.00 m above.
Appendix-7 (2022) Reg 9(iii)· Appendix-7 (projects over 2,500 m²)
Hilly
[[5,400],[7.5,999999]]
Plain
[[5,250],[7.5,400],[9,1000],[12,999999]]
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]]
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.
