Remodeling, ADUs & Additions in Castro Valley, CA
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Our Services in Castro Valley
Backyard ADUs, garage conversions and junior ADUsBathroom Remodeling in Castro Valley
Primary suites, hall baths and accessible bathroomsKitchen Remodeling in Castro Valley
Open layouts, islands, structural and system upgradesHome Additions in Castro Valley
Single-story additions and second storiesNew Home Construction in Castro Valley
Custom homes and teardown rebuilds
Axiom Renovation in Castro Valley
Axiom Renovation is a licensed general contractor (CA Lic. #1105006) building ADUs, additions, kitchens, bathrooms and new homes in Castro Valley.
Castro Valley is an unincorporated community of more than 60,000 people that began as cattle and poultry ranches. Most of its single-family neighborhoods were built from the early 1950s through the late 1990s, from the flats along Castro Valley Boulevard to hillside areas like El Portal Ridge, Hillcrest Knolls and Five Canyons near Lake Chabot.
Recent Work
Permits from Alameda County, Not a City
Because Castro Valley is unincorporated, building permits come from the Alameda County Public Works Agency and planning approvals from the County Community Development Agency. Projects follow the Castro Valley General Plan and the County’s Residential Design Standards and Guidelines, and the Castro Valley Municipal Advisory Council reviews larger projects. Sewer is Castro Valley Sanitary District, and fire is Alameda County Fire.
399 Elmhurst Street, Room 141, Hayward, CA 94544 · (510) 670-5480
Alameda County Planning
224 W. Winton Avenue, Room 111, Hayward, CA 94544 · (510) 670-5400
Applications and inspections through the Alameda County Permit Portal.
Nearby Service Areas
Castro Valley Remodeling FAQ
Who issues building permits in Castro Valley?
Alameda County Public Works Agency, since Castro Valley is unincorporated.
Who provides sewer service?
Castro Valley Sanitary District.
Who reviews fire safety?
Alameda County Fire Department.
Do you work in Castro Valley?
Yes, across the flats and the hillside neighborhoods.