Garage Conversion near San Mateo, CA
Element Homes
188 Acalanes Drive, Sunnyvale, CA 94086
19.6 miles
Element Homes is a California ADU contractor offering full-service design, permitting, and construction. They build detached ADUs, garage conversions, and in-law suites across the Bay Area, with in-house teams, warranties, and free estimates.
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Custom Home
2092 Concourse Drive, San Jose, CA 95131
25.6 miles
Custom Home is a Bay Area ADU contractor (CSLB #986048) with 160+ projects since 2005. They build detached, attached, junior ADUs & garage conversions across South Bay & Peninsula, with costs from $120K–$500K+.
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Atra Construction
San Jose, CA 95120
33.9 miles
Atra Construction is a Bay Area ADU contractor offering full-service design and build. They handle permits, planning, and construction management. Floor plans range from 240 sq ft studios to 1,200 sq ft three-bedroom units.
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ADU Builders Bay Area
111 N Market St Suite 1150, San Jose, CA 95113
26 miles
ADU Builders Bay Area specializes in detached ADUs, garage conversions, in-law suites & more. Expert ADU contractors offering transparent pricing, full permitting & quality construction throughout the Bay Area.
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Northbay Home Solutions
47 Paul Drive, San Rafael, CA 94903
30.4 miles
Northbay Home Solutions offers full-service ADU construction in San Rafael, San Francisco & North Bay. Services include detached ADUs, garage conversions & JADUs, covering design, permits & build.
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Step-up Construction
398 Bay Street, San Jose, CA 95123
34.2 miles
Step-up Construction is a San Jose ADU contractor specializing in garage conversions, attached additions, and detached backyard ADUs. Costs range from $80K to $475K. They guide homeowners through permits, zoning, and San Jose's ADU regulations.read more
Optivest Build
1580 3rd Avenue, Walnut Creek, CA 94597
28.6 miles
Optivest Build is a licensed general contractor offering ADU construction, garage conversions, home additions, renovations, and new builds. They manage permits, design, and inspections, delivering residential and commercial projects on time and wi... read more
Dream Build Services
3654 Thornton Ave, Fremont, CA 94536
16.6 miles
Dream Build Services is a full-service ADU contractor in Fremont, CA, offering detached ADUs, garage conversions, basement conversions, and JADUs. Services include design, permits, electrical, plumbing, HVAC, and solar integration across the East ... read more
9 Builders
San Jose, CA 95122
30.4 miles
9 Builders is a Bay Area ADU contractor offering full-service design, permits & construction. Specializing in detached ADUs, garage conversions & additions, costs range $150K–$350K, taking 8–14 months to complete.
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LRL Builders, Inc.
1661 Botelho Drive, Walnut Creek, CA 94596
27.3 miles
LRL Builders, Inc. is a licensed ADU contractor in Walnut Creek, CA, specializing in detached, attached, garage conversion, and junior ADUs. They handle design, permitting, and construction, serving Walnut Creek and surrounding Bay Area communitie... read more
Edri Construction, Inc. Walnut Creek
1990 N California Blvd Ste 20, Walnut Creek, CA 94596
28 miles
Edri Construction, Inc. is a Walnut Creek-based ADU contractor serving the Bay Area. They specialize in garage conversions, detached ADUs, attached additions, in-law suites, and JADUs, handling design, permitting, and project management.
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Vargas Construction
16064 Vía Harriet, San Lorenzo, CA 94580
14.6 miles
Vargas Construction is a California ADU contractor offering detached, attached, garage, junior, and multifamily ADUs. They handle design, permitting, and construction with energy-efficient materials, custom interiors, and full amenities in 2–6 m... read more
Apex ADU Builders
10050 North Foothill Boulevard, Los Angeles, CA 95014
20.8 miles
Apex ADU Builders is a Los Angeles-based contractor specializing in accessory dwelling unit construction. Services include new builds, garage conversions, permitting, and design. Costs range from $80K–$400K, with potential ROI 35% higher than ho... read more
SF Bay ADU
111 North Market Street, San Jose, CA 95113
27.3 miles
SF Bay ADU is a full-service Bay Area ADU contractor offering design, permitting, and construction for units from 600–1,200 sq ft. Options include studio, 2bed/2bath, garden cottage, and in-law suites for rental income or multigenerational livin... read more
Geico Builders
1901 Harrison Street, Oakland, CA 94612
17.8 miles
Geico Builders offers ADU services including detached ADUs, attached ADUs, Junior ADUs, garage conversions, and home additions. Ideal for rental income, family housing, or maximizing space on your existing property.
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Other cities in California
What you need to know
Searching for top Garage Conversion ADU Contractors in San Mateo, California? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).
Working with a qualified Garage Conversion ADU Contractor in San Mateo ensures your ADU project meets local building codes, zoning laws, and permit requirements. Whether you're planning a detached ADU, garage conversion, or backyard cottage, experienced Garage Conversion professionals can guide you through every step.
San Mateo homeowners are increasingly investing in ADUs to create additional living space, generate rental income, or support multigenerational living. The Garage Conversion experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Garage Conversion ADU Contractors in San Mateo, California, and get started today.