ADU Contractors

Straight Line Design and Remodeling LLC offers ADU design and build services in Portland, Oregon. Serving Beaverton, Tigard, Lake Oswego & Hillsboro since 2010, they build backyard cottages for rental income, multigenerational living & add... read more

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 u... read more

Monterey Bay ADU helps Santa Cruz & Monterey homeowners explore ADU options. With 20 years experience, they offer guidance on detached ADUs, JADUs & garage conversions, plus local permitting support & trusted builder referrals.

At Jorden Corporation, we specialize in turning your vision into reality with bespoke ADU building tailored to your unique lifestyle.

Concierge Home Remodeling is a Southern California ADU contractor offering full-service design, permitting, and construction. They build detached ADUs, garage conversions, granny flats, and in-law suites, boosting property value with quality craft... read more

JS Design & Build is a full-service ADU builder with the experience to navigate local codes, streamline approvals, and deliver exceptional results. Their in-house team of designers, builders, and project managers ensures seamless communication... read more

Bradley Knapp Homes is a leading ADU builder in South Carolina with 26+ years of experience. They offer custom homes, detached ADUs, pool houses, and home offices with full permitting support, financing options, and a 10-year workmanship warranty.... read more

Custom Home Builders Malibu specializes in ADU construction, backyard Casitas & granny flats. They offer turnkey design-build services, handling permits & compliance with California ADU laws for legal, independent living spaces.

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.

Vertical Contracting is a licensed full-service construction & remodeling company offering garage builds, ADU conversions, interior remodeling, pergolas, and flatwork. Known for quality craftsmanship and client-focused service.

Maui Eco Built offers prefab & custom ADUs, granny flats, and homes on Maui. Panelized construction cuts build time. Structures range from permit-exempt under 200 sq ft to 3,000 sq ft homes. Design, permits & site planning available.

Kellow Construction offers full-service ADU construction in Santa Barbara County, handling design, permitting, and building. Options include detached, attached, garage conversion, and Junior ADUs. Key regulations cover size limits, setbacks, parki... read more

As a full-service construction company focused exclusively on ADUs and multifamily housing, we guide you through every step—from initial concept to final walkthrough. Whether you're adding a high-quality ADU to your property or developing afford... read more

Easthope Design, led by ADU specialist Richard Esteb, helps Fort Collins homeowners design accessory dwelling units, including garage conversions, granny flats & backyard casitas. 15+ years experience. Serving Northern Colorado.

Southland Remodeling is a Los Angeles ADU contractor offering detached ADUs, garage conversions, and room additions. With 20+ years experience, they handle design, permits, and construction across LA and San Fernando Valley.