Detached ADU

O'Brien Construction LLC is an ADU contractor specializing in design, engineering, and construction of accessory dwelling units. Services include detached ADUs, additions, and design-assisted builds, with free consultations available.

Nestadu is a full-service ADU builder offering custom site-built and prefab accessory dwelling units. Prefab models range from $115K–$317K. Custom builds start at $400/sq ft. Financing options include HELOCs, construction loans, and CA grants.

E&E General Construction Inc (License #1067263) specializes in ADU construction and garage conversions in Richmond, CA. Services include detached ADUs, attached units, and garage conversions across the Bay Area. Free estimates available.

Genesis Homes is a leading ADU builder in the US, specializing in factory-built accessory dwelling units for developers. Available in 48 states, their offsite construction model offers speed, cost savings, and quality for granny flats, in-law suites, and backyard cottages.

LivLab Studios in Albuquerque offers full-service ADU contractor services, covering design, permitting, and site prep. Ideal for homeowners seeking granny flats, casitas, or rental units to add value and living space.

Zook Cabins is a trusted ADU builder offering A-Frame Modern and Sonoma ADU models in 1-2 bedroom layouts. As a certified detached ADU builder, they provide granny flats, in-law suites, and backyard cottages with regulatory guidance included.

Deharo Construction is a trusted ADU builder serving Livermore, Pleasanton, and Dublin. Specializing in accessory dwelling units, new construction, and home additions, they deliver custom granny flats, detached ADUs, and in-law suites across the Tri-Valley area.

Sten Engineering is a Los Angeles firm specializing in ADU design, structural engineering, and garage conversions. Led by licensed P.E. Evgeny Nagovitsyn, they handle permits, structural plans, and ADU builds across Southern California.

Distinctive Homes is Central Florida's trusted ADU builder, specializing in attached ADUs, detached ADUs, garage conversions & in-law suites. Boost property value & rental income with custom accessory dwelling units built to your vision.

Revitalize Construction (CA License #1099913) is a licensed general contractor in Sacramento offering residential & commercial construction, ADU builds, garage conversions, JADUs & renovations across Roseville, Folsom, Sacramento & surrounding Northern California communities.

Bao-Tran Builders Inc specializes in ADU construction, including detached ADUs, granny flats, JADUs, garage conversions & multi-unit properties. Expert ADU contractor delivering functional, high-quality housing solutions for property owners.

Aguilar Construction LLC offers full-service ADU construction, including site evaluation, permits, and build completion. With 30 years of experience, they specialize in detached ADUs, granny flats, casitas, and JADUs, delivering move-in ready units with a certificate of occupancy.

Portland, ME design-build firm O'Brien Wood & Iron has offered expert construction, renovation, historic restoration & custom millwork since 2008. With 60+ years combined experience, they serve residential & commercial clients with quality craftsmanship.

Alpha1 Builders in Elk Grove, CA specializes in ADU construction, including garage conversions, attached, detached, junior, and multi-tenant ADUs. They manage design, permitting, and build, helping homeowners add value and rental income.