San Mateo vs South San Francisco
How do grading & drainage rules compare between San Mateo, CA and South San Francisco, CA?
San Mateo, CA
San Mateo County
Grading and drainage in San Mateo are regulated under the city's building code (Title 23) and the NPDES Municipal Permit. Projects requiring grading permits must submit drainage plans. All projects creating or replacing 5,000+ square feet of impervious surface must meet stormwater treatment requirements.
View full San Mateo rules →South San Francisco, CA
San Mateo County
No data available yet for South San Francisco.
Key Facts Comparison
| Fact | San Mateo | South San Francisco |
|---|---|---|
| Permit | Required for grading exceeding thresholds | - |
| Erosion Plan | Required for all site disturbance | - |
| Stormwater | Treatment at 5,000+ sq ft impervious | - |
| Code Reference | SMMC Title 23 | - |
| Public Works | 650-522-7300 | - |
Highlighted rows indicate differences between cities.
San Mateo FAQ
Do I need a grading permit in San Mateo?
Yes, for earthwork exceeding thresholds established in Title 23. All site disturbance also requires an Erosion and Sediment Control Plan.
What stormwater requirements apply to my project?
Projects creating or replacing 5,000+ square feet of impervious surface must meet stormwater treatment requirements under the city's NPDES permit.
Who reviews drainage plans?
The Public Works Department reviews grading and drainage plans. Contact them at 650-522-7300.
South San Francisco FAQ
No FAQs available.
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