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30×40 House Construction Cost in Bengaluru — 2026 Breakdown
The definitive budget for building on a 30×40 site in Bengaluru: built-up area by floors, 2026 rates per square foot, stage-wise cost flow, and what the rate excludes.
The 30×40 (1,200 sq ft) site is Bengaluru's default plot, and "what will it cost to build?" is the city's default construction question. The honest answer is a band, not a number — here is the band and everything that moves you within it.
How much house fits on a 30×40 site
| Configuration | Typical built-up area |
|---|---|
| Ground floor only | ~1,000 – 1,100 sq ft |
| G+1 (duplex or two units) | ~1,900 – 2,200 sq ft |
| G+2 | ~2,800 – 3,300 sq ft |
| G+3 (where FAR and road width allow) | ~3,700 – 4,200 sq ft |
2026 construction rates
| Finish level | Rate per sq ft | G+1 total (~2,000 sq ft) |
|---|---|---|
| Standard | ₹1,900 – ₹2,300 | ₹38 – ₹46 lakh |
| Premium | ₹2,300 – ₹2,900 | ₹46 – ₹58 lakh |
| Luxury | ₹2,900+ | ₹58 lakh+ |
Where the money goes, stage by stage
| Stage | Share of cost |
|---|---|
| Foundation and plinth | 10 – 15% |
| Structure: columns, slabs, walls | 30 – 35% |
| Roofing and waterproofing | 5 – 8% |
| Electrical and plumbing | 10 – 12% |
| Flooring and tiling | 10 – 12% |
| Doors, windows, grills | 8 – 10% |
| Painting and finishing | 8 – 10% |
This stage flow is also your payment schedule: a well-structured agreement releases money as each stage completes and is reviewed — which is how you keep leverage until handover.
What the per-sqft rate does NOT include
- Plan sanction, khata and approval costs
- Compound wall, gate and landscaping
- Borewell, sump, rainwater harvesting
- Modular kitchen, wardrobes and interiors
- BESCOM/BWSSB connections and deposits
- Architect or structural engineer fees, if engaged separately