ADU Contractors

Streamline Design Group offers ADU design and permitting in San Diego, covering detached, attached, JADU, garage conversions, and multi-family units. Referenced in the State ADU handbook, they deliver permit-ready plans at 40–60% less than architect fees.

Dobson Construction Inc. is a Bay Area ADU contractor with 16+ years of experience building home additions, detached ADUs, guest suites, and garage conversions. They handle design, permits, and construction for functional, value-adding residential spaces.

Coastal Haven is a Tampa ADU contractor handling zoning, permits, design, and construction. They build garage conversions, backyard cottages, and detached ADUs within approved overlays, ensuring full Florida Building Code compliance.

Spruce ADU Builders is a licensed ADU contractor in Union City offering expert accessory dwelling unit construction. Services include granny flats, in-law suites, and custom ADUs with free consultations, transparent pricing, and a 100% satisfaction guarantee.

Daniel's Development Group builds ADUs in Los Angeles, including attached, detached, garage conversions & JADUs. Permits cost ~$6,000. Rental income averages $2,500/month. Free consultations available.

La Tour Builders offers expert ADU construction in Laguna Niguel, CA, including garage conversions, detached units & attached additions. Licensed, insured & code-compliant, they help homeowners add rental income or multigenerational living space.

Nu-View Construction offers garage conversion & ADU construction in Philadelphia. Services include garage remodels, granny flats, storage, lighting & flooring. Costs start at $15,000–$45,000, with full ADUs exceeding $70,000.

MDM General Contractors offers full-service ADU construction in San Bernardino, including garage conversions, granny flats & detached ADUs. Licensed & insured, they handle design, permits, and build from start to finish.

ADU Premium builds eco-friendly, RVIA-certified tiny homes and ADA-accessible ADUs. Models range from 90–360 sq ft, starting at $49,200. Includes permits, delivery, and installation. Financing available via RV loans, HELOC, and more.

Horizon Remodeling Inc. is a full-service residential remodeling company offering kitchen, bathroom, roofing, flooring, painting, and ADU conversions. Dedicated project managers coordinate all trades, keeping projects on schedule and within budget.

RP Construction is a family-owned custom home builder in Salem, Oregon, with 20+ years of experience and 110+ satisfied clients. They offer transparent pricing, clear communication, and quality craftsmanship from design to move-in.

Tiny Homes of Iowa is Urbandale's premier ADU builder serving all of Iowa. Specializing in detached ADUs, garage conversions & in-law suites, they manage everything from feasibility to move-in, ideal for multigenerational living or rental income.

Wilmington ADU Solutions builds accessory dwelling units in Wilmington, NC. Offering 8 pre-designed floor plans from 250–1,200 sq ft, turnkey builds start at $94,250 with 90-day completion, rental setup, and full permitting support.

Old Reliable builds ADUs, casitas & granny flats across Arizona's Valley. As a design-build ADU contractor, they handle floor plans, permits & construction in-house, offering customizable layouts to add property value or rental income.

KGA Construction Inc offers turnkey ADU construction in Sacramento, including garage conversions, detached ADUs, and backyard cottages. Services cover design, permits, and build management for accessory dwelling units that add lasting property value.