Stormwater detention requirements for development projects
Daly City
Summary
The city wants to write its stormwater detention rules into the zoning code so there's no more confusion about who has to build retention systems. Small home additions, ADUs, and small paving projects would be exempt, but new single-family homes on small lots would still have to comply. Residents who were previously forced to build expensive systems are asking why, and whether anyone gets reimbursed.
At a glance
- Total mentions
- 1
- Last 30 days
- 0
Last discussed Jun 3, 2026.
Impact analysis
Retention systems can cost homeowners $8,000 to $20,000 per project; the amendment exempts most small residential projects from that burden.
Homeowners planning additions or ADUs, who would no longer face costly detention requirements.
Builders of new single-family homes on small lots, who would still face detention requirements some called impractical on steep or sandy lots.
Mentions & discussions (1)
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