ADU Cities designs and builds custom accessory dwelling units throughout San Mateo County, California. Our in-house design-build team handles every step: feasibility and zoning review, architectural and structural plans, Title 24 energy documentation, permit submittal and plan-check corrections, construction, inspections, and final sign-off.
County ADU portal: San Mateo County ADU page — ADU FAQs and how to apply, from the County Planning Department.
Cities We Serve in San Mateo County
- Atherton
- Belmont
- Brisbane
- Burlingame
- Colma
- Daly City
- East Palo Alto
- Foster City
- Half Moon Bay
- Hillsborough
- Menlo Park
- Millbrae
- Pacifica
- Portola Valley
- Redwood City
- San Bruno
- San Carlos
- San Mateo
- South San Francisco
- Woodside
Don’t see your city listed? We serve all of San Mateo County, including unincorporated communities. Call 562.810.1965 for a free consultation.
