ADU Contractors

Murray Lampert, San Diego's trusted ADU builder since 1975, offers full design-build services including granny flats, in-law suites, and garage conversions. With 50+ years of experience, they deliver custom, high-quality accessory dwelling units t... read more

DSA Architects designed an 850 sq. ft. second-floor ADU in Berkeley Hills for multi-generational living. Features 2 beds, 1 bath, open layout, Tilden Park views, roof deck, solar PV, heat pumps, and gray-water system.

Mastercraft Home Improvement offers expert ADU construction services, including granny flats, garage conversions & in-law suites. Boost property value by 10–25%, earn rental income & add flexible living space with a trusted ADU contracto... read more

Carson Custom Homes LLC is a San Antonio-based custom home builder and ADU contractor serving Texas Hill Country since 1999. They specialize in custom homes, remodeling, outdoor living, and accessory dwelling units including casitas and in-law sui... read more

Vermont Flex Homes is an experienced ADU contractor in Windham County, VT, specializing in permitted, move-in ready accessory dwelling units, garage conversions, in-law suites, and custom ADU builds tailored to Vermont's climate and codes.

Expert ADU builder offering detached ADUs, garage conversions & backyard cottages. Structured process: feasibility, permits, construction & final walkthrough. Boost property value, enable multigenerational living & create flexible spac... read more

Jordan & Jordan Construction builds custom home additions in Eugene & Springfield, OR since 1991. Services include bedrooms, garages, sunrooms, second stories & ADUs. Licensed, bonded & insured (CCB#176193).

Licensed ADU contractor and construction management firm for NYC homeowners. We handle eligibility, permitting, and the full build across Queens, Brooklyn, Staten Island, and the Bronx.

Valley Home Builders Inc. is a Silicon Valley design-build contractor serving Santa Clara & San Mateo Counties. Founded in 2005, they specialize in kitchen remodeling, ADU construction, and home renovations across San Jose, San Mateo & bey... read more

Allison Ramsey Architects offers custom home design, plan modifications, 3D modeling, and site planning. They support residential projects including ADUs, granny flats, and casitas from concept to completion.

Avorino specializes in ADU construction, offering detached, attached, garage conversion, and above-garage units. Projects range from $250K–$400K, covering design, permitting, and build phases over 10–14 months.

Evergreen Builders is Northwest Arkansas's leading ADU builder with 25+ years of experience. They offer custom ADUs, in-law suites, backyard cottages, pool houses, and more in Bentonville, Fayetteville, Rogers & beyond.

Soul Builders SLC offers full-service ADU construction in Utah, handling design, permitting, zoning, and building. Services include detached ADUs, garage conversions, and basement apartments, tailored to each property's layout and budget.

DeMarco Builders is a licensed general contractor since 1996, offering residential and commercial construction, custom homes, ADUs, remodels, and additions. Using critical path management, they deliver projects faster while maintaining quality.read more

F&A Modular Homes builds custom modular ADUs, granny flats & backyard cottages. Units ship fully built or flat-packed, meet CA codes, & can be relocated. Builds in 3–6 weeks, cutting on-site labor by 70%. Founded to address veteran h... read more