ADU Contractors

Seattle's 2019 ADU law changes made it easier to build accessory dwelling units on single-family lots. DADUs can't exceed 50% of the main home's size. No parking required. New detached ADUs start around $350,000.

Think ADU is a California ADU contractor specializing in design, permitting, and construction of accessory dwelling units. Services include detached ADUs, garage conversions, JADUs, granny flats, and in-law suites for rental, family, or property value goals.

Expert Designers is an NYC-based ADU architect firm helping homeowners convert garages, basements, and backyards into legal accessory dwelling units. Services include design, permit filing, and construction support under NYC's City of Yes zoning updates.

With years of experience in ADU design and construction, we deliver high-quality results tailored to Connecticut homeowners. We understand Hartford and Connecticut’s ADU regulations, making your project smooth and hassle-free from permits to completion.

White Crane Design:Build is an award-winning, woman-owned ADU builder and remodeling firm in the Twin Cities, MN. Founded in 2002, they specialize in ADU construction, garage conversions, and residential remodeling in Minneapolis and St. Paul.

Haas Development & Construction offers ADU & DADU construction in Greater Seattle. They handle planning, permits, design, and builds for attached & detached units, including prefab DADU plans, helping homeowners add rental income or family housing.

Eagle ADU Solutions by Berbower Builds is a top ADU contractor in Eagle, ID, specializing in detached ADUs, attached ADUs, and garage conversions. They offer custom designs, expert guidance, and on-time delivery.

American Builders is a San Francisco ADU contractor specializing in garage conversions, detached units, in-law suites & basement conversions. They handle permits, zoning, and deliver code-compliant accessory dwelling units on time and on budget.

Huntington Beach Pro ADU Builder specializes in ADU construction, garage conversions, and detached ADUs. With 20 years of experience and 500+ projects, they offer full design-build services, permit handling, energy-efficient features, and transparent pricing.

Cookeville Home Remodeling builds custom ADUs in Cookeville, TN. Services include detached ADUs, garage conversions, granny flats & in-law suites. Costs range from $25K–$180K+. Licensed, insured & serving Putnam County.

Carolina's Building Company is Charlotte's trusted ADU contractor, offering full-service accessory dwelling units including backyard cottages, garage conversions, and interior conversions. They handle design, permitting, and construction with transparent pricing.

Evereve Builders is a Southern California construction company led by Daniel Jimenez, with 23 years of experience. Specializing in ADUs, garage conversions, granny flats, and high-end residential builds.

The Powell Group is a Portland-area custom home and ADU builder led by Mitch Powell, with 20+ years of experience. They've completed 500+ homes and 30+ ADU projects, offering expert construction from planning to completion.

Dr Build ADU Specialist's mission is to build affordable high-quality Accessory Dwelling Units (ADU’s/Granny Flats) that the average person can afford.

Always providing the best with our friendly, understanding, bilingual builders and sales personal.

Building an ADU involves key phases: permitting, foundation, framing, inspections, and finishing. Choose a qualified ADU contractor, secure lien releases, and use a punch list. Plan for rental income, family housing, or long-term investment success.