Bathroom Remodeling in Castro Valley, CA
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Bathrooms in Castro Valley Homes
Castro Valley homes date mostly from the early 1950s to the late 1990s. We remodel original hall baths and primary suites, and handle the County permit, often eligible for over-the-counter plan check by appointment.
Alameda County Building Inspection (Public Works Agency)
399 Elmhurst Street, Room 141, Hayward, CA 94544 · (510) 670-5480 · pe*******@***wa.org
Permit processing Monday, Tuesday, Thursday and Friday 8:30 a.m. to 4:30 p.m., Wednesday 9 a.m. to 4:30 p.m.; over-the-counter plan check by appointment at (510) 670-5440. Inspections online, at (510) 670-5434, or by email.
Alameda County Planning (CDA): 224 W. Winton Avenue, Room 111, Hayward · (510) 670-5400.
Applications run through the Alameda County Permit Portal.
399 Elmhurst Street, Room 141, Hayward, CA 94544 · (510) 670-5480 · pe*******@***wa.org
Permit processing Monday, Tuesday, Thursday and Friday 8:30 a.m. to 4:30 p.m., Wednesday 9 a.m. to 4:30 p.m.; over-the-counter plan check by appointment at (510) 670-5440. Inspections online, at (510) 670-5434, or by email.
Alameda County Planning (CDA): 224 W. Winton Avenue, Room 111, Hayward · (510) 670-5400.
Applications run through the Alameda County Permit Portal.
Bathroom Projects
Code Items
- GFCI circuits, exhaust fan, safety glazing and water-conserving fixtures.
- Smoke and CO alarms under the 2025 California codes.
Castro Valley Bathroom Remodeling FAQ
Who issues bathroom permits in Castro Valley?
Alameda County Public Works Agency.
Is over-the-counter plan check available?
By appointment at (510) 670-5440.
How are inspections requested?
Online, by phone or by email.
How long does a bathroom remodel take?
A few weeks of construction after materials arrive.