Guides
Guides from our engineers
Answers to the questions people ask us before they spend money, written from our own drawings, bills of quantities and the district data on this site.
By the TerraSetu engineering team · Last checked
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More guides
- Guide · Cost
School building construction cost in India: a real BOQ for a G+1 school
What a G+1 government school building costs in 2026, from a real bill of quantities: ₹2.13 crore for 12,130 sq ft of structure, cost per sq ft, per classroom and by trade.
- Guide · How to
How to build a recharge pit: size, depth and design
Recharge pit design for a house or building: pit size (2 × 2 × 2.5 m), filter media, recharge bore depth, how many pits a roof needs, and the cost with GST.
- Guide · Rules
Is rainwater harvesting mandatory in Gurugram?
Rainwater harvesting rules in Gurugram and Haryana: mandatory where the roof is 100 sq m or more under the Haryana Building Code 2017, no occupation certificate without it, and what to build.
- Guide · CSR
How CSR teams choose schools to fund
How a CSR team can shortlist government schools to fund in days: pick districts, filter by need from UDISE+ data, verify, visit. With a 100-point scorecard and compliance checklist.
- Guide · House plan
50 × 40 house plan: a 3BHK flat on each floor
A 50 × 40 ft G+1 house plan from a TerraSetu project in Gurugram: a 2,000 sq ft open-style 3BHK flat on each floor, Vastu layout, room sizes and a 3D model you can explore.