Richmond's UDC and Public Infrastructure Design Manual require new and redeveloped sites to provide stormwater detention and drainage improvements meeting city design standards before approval.
Richmond regulates stormwater through Section 7.7 (Storm Water Detention Requirements) of its Public Infrastructure Design Manual, incorporated into the Unified Development Code. New development and substantial redevelopment must demonstrate that post-development runoff does not exceed predevelopment rates, typically through on-site detention basins sized per city methodology. Drainage plans, calculations, and detention designs must be submitted with site development applications and approved by the Public Works and Planning and Zoning Departments before construction.
Constructing without an approved drainage plan, undersized detention, or causing offsite flooding from a Richmond development can trigger stop-work orders, civil penalties, and required corrective construction.
See how other cities in Fort Bend County handle stormwater management.
See how Richmond's stormwater management rules stack up against other locations.
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