| Primary value | 1.5 m ((min, height ≤ 10 m)) |
| Applies to | Detached and semi-detached buildings with side openings |
| Exceptions | Height 10-15 m → 3.0 m |
| Height 15-21 m → 5.0 m | |
| Height 21-30 m → 7.0 m | |
| Plot ≤ 9 m wide → Setback may be relaxed via local DCR | |
| High-Rise Fire Access (>15m height) → A minimum 6 m clear motorable accessway around the building is often required per NBC Part 4, which can override the minimum setbacks specified in Part 3. | |
| Occupancy Type → NBC 2016 specifies different setback values for Residential (Group A) vs. other occupancies (Educational, Commercial, etc.), which are generally more stringent. | |
| Semi-Detached Buildings → Zero setback is permitted on the common boundary side, but the other side typically requires a wider setback (e.g., min 3.0 m). | |
| Row Housing → No side setbacks are required for intermediate units; setbacks apply only to the end units of a row. | |
| Measured as | Perpendicular distance from the building face to the side property boundary, on each side independently. |
| Source | NBC 2016 — Part 3, Clause 8.2.3.3 & Table 5 ⚠ Clause pending verification |
Side setbacks are crucial for adequate natural light and cross-ventilation, particularly in India's varied climates. They also prevent fire from spreading between adjacent properties and, for taller buildings, provide essential access for fire tenders and emergency services.
For buildings exceeding 15 m in height (classified as high-rise), a 6 m clear motorable accessway is often mandated by NBC Part 4, which typically governs the side setback. In residential plots, these open spaces are used for service lines, utility ducts, and integrating green features like rainwater harvesting trenches.