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Rainwater harvesting for housing societies — design and cost

DRAFT — outline only. Do not publish until the figures below are verified. Keep this guide inactive until it is written.

Angle: The society-scale version, which is where the bigger impact is.

This guide must answer: - How does society-scale RWH differ from a home system? - What does it cost and who pays? - What approvals and design does it need? - How to get it moving via the RWA.

Writing rules: answer the question in the first two sentences, put a real number in the opening paragraph, name the specific city or DISCOM where the answer varies, and link to two related guides and the relevant category page.

Verify before publishing: Society RWH cost ranges locally.

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Last updated 4 August 2026 · Reviewed by the RenSetu team

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