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Rainwater harvesting rules · sources up to 2015

Rainwater harvesting rules in West Bengal

Rainwater harvesting is mandatory for all buildings under the West Bengal Municipal (Building) Rules, 2007 (Rule 171). A 2015 government reply said the 2009 rules apply it to buildings with a roof area above 20,000 sq m, which looks inconsistent with the 2007 rule.

Note: The Kolkata Municipal Corporation Building Rules, 2009 were not verified. The 20,000 sq m figure in the 2015 reply looks odd and may be a transcription error.

Mandatoryfor new buildings
all buildings (2007 rules)where the rule starts
West Bengal Municipal (Building) Rules, 2007, Rule 171the rule

Does it apply to your building?

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What the rule says

Applies toresidential, commercial, government

Sources

Rules change and cities add their own. Check with your municipal body or development authority before you build.

Rainwater harvesting cost in West Bengal

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Frequently asked questions

Is rainwater harvesting mandatory in West Bengal?

Rainwater harvesting is mandatory for all buildings under the West Bengal Municipal (Building) Rules, 2007 (Rule 171). A 2015 government reply said the 2009 rules apply it to buildings with a roof area above 20,000 sq m, which looks inconsistent with the 2007 rule.

Which buildings need rainwater harvesting in West Bengal?

all buildings (2007 rules): residential, commercial, government.

Rules in other states