ADU San Mateo

ADU San Mateo is a construction company in San Mateo, CA. The licensed design-build contractor specializes in crafting custom detached ADUs, attached ADUs, and garage conversions for homeowners across San Mateo and Santa Clara Counties. The company provides a turnkey process that includes a tailored project design approach, handling of all city approvals and paperwork, and quality construction using modern materials and experienced local crews, with the aim of delivering results ready to live in, rent out, or host guests. ADU San Mateo holds a 5.00 rating based on customer reviews. He established the firm to address problems he observed in residential construction, and the team now combines architectural insight, construction experience, and knowledge of Bay Area zoning laws to manage projects from initial concept through move-in. Services include standalone backyard homes for rental, guest, or retreat use, home extensions for multigenerational living, and garage conversions that add livable space without altering the home's footprint. Featured work includes a Spanish-revival detached ADU in Millbrae with hand-troweled white stucco, a clay-tile roof, arched entry, and a beamed, barrel-vaulted interior with walnut cabinetry and waterfall quartz, as well as a modern detached ADU currently under construction in Los Altos. The firm also operates Monday to Friday, 8AM to 6PM, offers a free feasibility review with a response within one business day, and is reachable at (650) 200-2040. Its service area spans San Mateo County and Santa Clara County, including Hillsborough, Burlingame, Millbrae, San Carlos, Belmont, Foster City, Redwood City, Menlo Park, Atherton, Palo Alto, Los Altos, Cupertino, Los Gatos, Saratoga, and Gilroy, along with Willow Glen, Silver Creek Valley, Almaden Valley, Rose Garden, Cambrian Park, and West San Jose within San Jose. Customers who have hired ADU San Mateo describe the crew as professional, responsive, and detail-oriented, noting clean and safe job sites, timely completion, and craftsmanship that exceeds expectations. The firm's emphasis on transparency, local permitting knowledge, and turnkey delivery has earned consistent high marks from Bay Area homeowners.

ADU San Mateo operates on East 3rd Avenue in San Mateo, CA, just off West 3rd Avenue and South San Mateo Drive. The San Mateo Public Library and Draper University of Heroes are within about a tenth of a mile, and San Mateo Creek is a short distance to the north.

On BizScoreAI, ADU San Mateo earned a Performance score of 88 out of 100, which is in the strong range. This score reflects how quickly the company website loads, helping keep visitors on the page and contributing to search engine rankings.