Redwood City vs San Mateo
How do grading & drainage rules compare between Redwood City, CA and San Mateo, CA?
Redwood City, CA
San Mateo County
No data available yet for Redwood City.
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 →Key Facts Comparison
| Fact | Redwood City | San Mateo |
|---|---|---|
| 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.
Redwood City FAQ
No FAQs available.
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.
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