ADU Contractors

Precision Construction & Contracting builds ADUs in Lancaster, PA, including in-law suites, backyard cottages & garage conversions. Full-service ADU contractor handling construction, permits & code compliance across Southeastern Pennsylvania.

Golden State Buildings LLC, based in Sanger, CA, builds ADUs across Central California. They offer 4 floor plans (420–1,200 sq ft), handle permits, and provide financing options. Free delivery within 50 miles.

Ethics Home Building and Remodeling in Bristol, CT specializes in home additions, in-law suites, and ADU construction. Services include garage conversions, second-story expansions, and code-compliant accessory dwelling units tailored to homeowner needs.

Cousin Gary Homes – Sacramento specializes in ADU & JADU construction, offering 80+ floor plans from 546–2,536 sq. ft. Benefits include added property value, rental income & flexible living. California's 2023 ADU laws make building easier than ever.

California's 2020 ADU laws allow two ADUs on single-family lots, reduced setbacks, larger units up to 800 sq ft, no owner-occupancy rules until 2025, faster approvals, and expanded parking exemptions statewide.

Royalty Builders is a full-service ADU builder in Los Angeles offering in-house design, engineering & construction. They provide competitive pricing, permit management & turnkey delivery for detached ADUs from 500–750 SF.

Canbury Homes is a Maine-based modular ADU builder offering diverse floor plans like Columbia II, Clinton, Cameron, and more. They guide homeowners through Maine's ADU regulations, providing customizable, affordable accessory dwelling units.

Aurea Construction, based in Thousand Oaks, CA, specializes in ADUs, garage conversions, room additions, sunrooms & second story additions. They manage full projects from design to permits, serving local homeowners seeking quality home expansion solutions.

GreenSo Las Vegas is a licensed ADU contractor with 20 years of experience. They offer custom ADU builds, garage conversions & full construction management in Las Vegas, prioritizing eco-friendly practices & client-centered service.

3R Services builds ADUs in Arvada, CO, including backyard cottages, garage conversions & in-law suites. Projects cost $80K–$250K, take 3–6 months, and include permitting, transparent pricing & a 1-year warranty.

Everlife Home offers ADU packages with 1-2 bedroom floor plans, full kitchens, and standard finishes. As a full-service ADU contractor, they manage the entire build, with optional upgrades, decks, and storage add-ons available.

Olive City Construction, LLC is a Northern California ADU contractor serving Chico. They offer tiered packages for accessory dwelling units, financing options including 0% APR, and handle permitting, garage conversions, granny flats, and detached ADU builds.

ADU Innovators is an Arizona ADU contractor serving the Phoenix area, offering turnkey design and construction of accessory dwelling units, casitas, and garage conversions. Pre-designed models range from 400–800 sq ft.

Arizona Garage Builders is an Arizona-based construction company with 25+ years of experience specializing in custom garages, RV garages, casitas, and accessory dwelling units (ADUs). They offer free 3D renderings and a 100% satisfaction guarantee.

Builderwell is an ADU contractor in Orange County, CA, offering full-service design-build solutions for custom accessory dwelling units, including guest houses, in-law suites, and rental units across Irvine, Newport Beach, and Laguna Hills.