Detached ADU in Illinois

Chicago legalized ADUs in 2020 across five pilot zones. BLDG Projects ranks among the top ADU contractors in Chicago, specializing in coach house, basement, garage, and attic conversions to help homeowners add rental income or living space.

Mark Home Builders & Additions is a full-service home contractor proudly serving Elgin and the surrounding communities. They specialize in custom home builds, home additions, and renovations that combine quality craftsmanship with practical de... read more

Hudson Pro Builders offers ADU construction in Chicago, Cook County, DuPage County & Lake County. Services include garage conversions, basement ADUs, in-law suites & backyard cottages, with full design, permitting & zoning support.

Maya Construction Group is a Chicago-based design-build contractor specializing in home additions and remodeling. Licensed and insured, they handle permits, zoning, and inspections while offering owner-supervised project management for kitchens, b... read more

Chicago Granny Flats offers turnkey ADU design-build services in Chicago, specializing in Coach Houses and Backyard Cottages. Using recycled steel panels, they deliver energy-efficient granny flats with guaranteed pricing, custom floor plans, and ... read more

Yu & Associates Collaborative designed a detached ADU above a garage in Chicago's Wicker Park under the city's ADU pilot program. The compact backyard cottage features a bedroom, living room, kitchen, and office, maximizing space with high cei... read more

JAC Construction LLC builds detached ADUs in Davenport, Bettendorf & Greater Quad Cities. Services include site evaluation, foundation, framing, utility integration & interior finishing for custom accessory dwelling units meeting local bui... read more

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.

We make sure you have clarity in the process, confidence in the execution, and full communication all along the way.

Enclosure bridges the gap between design and construction.

Foster Dale Architects designed a sustainable ADU coach house in Chicago, featuring a garage with dwelling unit above. The project incorporates geothermal heating, high-performance envelope, and recycled materials under Chicago's ADU ordinance.read more

J Scott Builders Inc. offers ADU construction, custom home building, and renovations in Albany, OR. Services include in-law suites, detached ADUs, new builds, and expansions tailored to each homeowner's needs.

ADU America builds custom tiny homes & ADUs—studio, 1-bed, 2-bed, garage conversions & more. 25+ years experience, turnkey process, on-site construction, 6–12 month timeline, 1-year warranty & flexible financing options.

Chicago legalized accessory dwelling units (ADUs) in 2020. Via Chicago Architects designs coach houses, granny flats & basement apartments for rental income, home offices, or guest suites on existing residential properties.

ADUs (accessory dwelling units) are secondary homes on existing lots. Brothers General Construction builds detached, attached, garage conversion & junior ADUs across Illinois. Chicago ADU costs range $115K–$150K, with strong rental income po... read more