ADU Contractors

Ofir Construction Inc. is a Los Angeles ADU contractor with nearly 20 years of experience. They specialize in ADU builds, garage conversions, and in-law suites, managing permits, planning, and construction while following California building codes... read more

Prime1 Builders constructed a custom ADU "Casita" in Gibsonia, PA for multi-generational living. The connected in-law suite features 2 bedrooms, open layout & full utilities. Winner of the 2023 House Excellence Award.

ADU Hotline offers affordable ADU design and permitting in Southern California. From granny flats to garage conversions, they handle the full process in 3–4 weeks, helping homeowners add rental income or family housing efficiently.

Virginia ADUs—backyard cottages, garage conversions, basement apartments—add living space or rental income. Premier Structures builds compliant ADUs statewide, navigating local zoning, permits, and size rules (250–1,200 sq ft).

Studio Home is a Colorado-based prefab ADU builder serving all 50 states. With 18+ years experience and 6,000+ projects, they offer panelized ADU kits, backyard studios, granny flats, and in-law suites with fixed pricing and full project managemen... read more

OC Master ADU Construction builds ADUs across Orange County, offering detached units, garage conversions, JADUs & attached additions. Services include design, permitting & full construction management for rental income or family housing.read more

SRH Homes builds custom ADUs, including 500 SF 1-bed and 800 SF 2-bed units. Options include high-end finishes and mini-split HVAC. Financing via HELOC or cash-out refinance. Ideal for rental units, granny flats, or in-law suites.

Riverfront Development Group is an experienced ADU contractor offering detached ADUs, garage conversions, in-law suites, JADUs, and backyard cottages. They manage planning, permitting, and construction for homeowners seeking to expand living space... read more

FTS Excavation offers full-service ADU site development in South Puget Sound, Western Washington. Services include grading, utilities, septic systems, foundation excavation & permits. Certified, reliable ADU contractor for backyard homes &... read more

Buildwright Construction offers full-service ADU construction, including detached ADUs, granny flats, in-law suites, and JADUs. They handle planning, permits, and building, helping property owners add rental income, guest space, or multi-generatio... read more

Quantum Realm Construction builds custom ADUs in Illinois—backyard cottages, in-law suites & granny flats. Costs range $80K–$200K, with builds completed in 3–6 months. Ideal for rental income or extra living space.

Tiny Homes Raleigh builds custom ADUs and stick-built tiny homes across Wake, Durham, Orange & nearby NC counties. Projects range $120K–$250K+. Services include design, permitting, and full construction management.

ModernSpace ADU Construction is a trusted ADU builder in Chula Vista offering detached ADUs, granny flats, garage conversions & in-law suites. Free consultations, upfront quotes, quality craftsmanship & full satisfaction guaranteed.

J's Vision Construction offers residential & commercial remodeling, including kitchen & bathroom remodels, ADU garage conversions, swimming pools, room additions, roofing, plumbing, flooring, and more — all managed under one general cont... read more

An ADU is a legal, habitable living space added to an existing property. They can be site-built or factory-built, vary in size by location, and may boost home resale value by ~45%. Always verify local codes and builder credentials.