Bathroom Remodeling in San Mateo, CA
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Bathrooms from Baywood to Shoreview
San Mateo’s homes range from 1920s period-revival houses in Baywood and Glazenwood to postwar ranches. Interior bathroom remodels need only a building permit through the CSS portal, with plans as PDFs on sheets of at least 11×17.
330 W. 20th Avenue, San Mateo, CA 94403 · Community Development (650) 522-7200
Planning (650) 522-7212 · Permit and inspection help (650) 522-7172
Building counter Monday, Wednesday and Thursday 8 a.m. to noon and 1 to 4:30 p.m.; Tuesday and Friday mornings (Friday afternoons by appointment). Permits run through the Customer Self-Service (CSS) portal. Inspections are requested there by 3 p.m. for the next day; the inspector calls before 9 a.m. with a two-hour window.
Bathroom Projects
Code Items
- GFCI circuits, exhaust fan, safety glazing and water-conserving fixtures.
- Smoke and CO alarms under the 2025 California codes.
Historic homes: since June 2026, San Mateo’s Historic Resources Inventory is the official list of landmarks and districts, including Downtown and Glazenwood. Alterations to a listed home need a Certificate of Appropriateness, and demolition requires a historic evaluation.
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Other San Mateo services: Kitchens · Additions · New Homes · San Mateo ADU builder · San Mateo overview
Same service nearby: Burlingame · Belmont · Hillsborough
San Mateo Bathroom Remodeling FAQ
How do I schedule inspections in San Mateo?
Through the CSS portal by 3 p.m. for the next day.
Does a bathroom remodel need design review?
No, interior work needs only a building permit.
What if my home is historic?
Alterations to listed homes need a Certificate of Appropriateness.
How long does a bathroom remodel take?
A few weeks of construction after materials arrive.