G+3 is where an independent house becomes a small building. The rules, the structure and the approval route all change from G+2.
Approval and Height
- Height: roughly 12–13 m including the parapet, depending on floor heights.
- Road width caps permitted height; check your road allows it.
- Approval route: above 10 m, BuildNow's single-window process applies rather than instant approval.
- Setbacks grow with height.
- Lift and fire provisions may apply depending on height and use.
Cost
| Plot | Built-up per floor | Total | Standard (₹2,000–2,500) |
|---|---|---|---|
| 200 sq yd | ~1,200 sq ft* | ~4,800 sq ft | ₹96 lakh – 1.2 cr |
| 300 sq yd | ~1,700 sq ft* | ~6,800 sq ft | ₹1.36 – 1.7 cr |
*Larger setbacks for taller buildings can reduce per-floor area; your architect confirms it. Add 10–20% for approvals, design, sump, septic or sewer, compound wall, lift if any, and connections.
Structure
- Columns carry four floors and a roof — larger sections and bars, commonly 16 mm and above at lower levels.
- Concrete commonly M25 for columns and footings, as a design mix.
- Soil test essential; footings or a raft sized for the load.
- Design for the final height from the start.
Materials (~4,800 sq ft)
| Material | Approximate quantity |
|---|---|
| Cement | about 1,900 bags |
| TMT steel | 17 – 22 tonnes |
At this scale, ₹2/kg on 20 tonnes of steel is ₹40,000; buy each floor's steel in one competitive order.
The Short Version
Check road width and approval route first, design the structure for four floors, and budget about ₹1 crore for a standard G+3 on 200 sq yards — with materials bought floor by floor at competitive prices.
