Attached ADU

Boston Construct is a full-service ADU contractor in Boston, MA, building basement conversions, garage conversions, detached backyard cottages, and in-law suites. They handle design, permitting, and construction for 1-3 family homeowners across Greater Boston.

BOLD Construction builds ADUs in Chapel Hill, Orange & Chatham County. Costs range $350–$500/sqft. Services include detached ADUs, garage conversions & in-law suites with a transparent fixed-price design-build process.

OCA Builders offers ADU design & construction in Santa Cruz County, including detached, attached, garage conversion, internal, and Junior ADUs. They use pre-approved floor plans to streamline permitting, saving homeowners time and effort.

Jordan & Jordan Construction builds custom home additions in Eugene & Springfield, OR since 1991. Services include bedrooms, garages, sunrooms, second stories & ADUs. Licensed, bonded & insured (CCB#176193).

GTG Custom Home Builders specializes in ADU construction in Central New Jersey. They build detached ADUs, garage conversions & in-law suites, navigating local zoning & permits to expand your property's living space.

Considering an ADU in California? Sea Pointe Design & Remodel helps homeowners plan and build accessory dwelling units, including garage conversions, granny flats, and backyard cottages, handling permits, design, and construction.

Georgia ADU is Atlanta's top accessory dwelling unit builder, offering end-to-end ADU construction. Services include detached ADUs, garage conversions, in-law suites & more. Projects start at $150,000, with timelines of 4–9 months.

ADU costs in Boise depend on structure type, design, and site conditions. Detached ADUs cost more than attached units. Check zoning eligibility before building. ADUs offer rental income, multigenerational living, and increased property value.

Eco Scale Construction builds ADUs in Sunnyvale, Los Altos & Palo Alto, CA. Services include detached ADUs, garage conversions & JADUs. Costs range from $80K–$400K+. Fully compliant with California ADU regulations.

Premium ADU is a Los Angeles ADU specialist offering design, permitting, and construction of detached ADUs, garage conversions, and JADUs. Operating since 2021 with an in-house team, projects typically complete in 6–12 months.

One & Only Tiny Homes builds custom ADUs, tiny homes & garage conversions in Broward & Palm Beach County, FL. Services include detached/attached ADUs, pool houses & home offices, with full permit handling, financing options & workmanship warranties.

ADUs in Philadelphia offer rental income & flexible living space. Capped at 800 sq ft, they require owner occupancy & zoning compliance. Costs range $100–$300/sq ft. Matrix Design & Build manages design, permits & construction.

Condor Builders offers custom ADU design & construction in Sacramento & Northern California. Services include permitting, energy-efficient builds, garage conversions & two-story ADUs. Serving Roseville, Folsom, Granite Bay & more. Free estimates available.

Chicago's Assembly Squad Remodeling LLC specializes in attic conversions & ADUs. Services include bedroom suites, rental units ($1,500–$2,500/mo), home offices & more. Pricing starts at $50/sq ft. Permits & compliance managed.