Brothers General Construction Company

2024 West Potomac Avenue, Chicago, IL 60622 29.9 miles

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

Assembly Squad Remodeling LLC

205 North Michigan Avenue, Chicago, IL 60601 29.5 miles

Licensed Free Consultation Free Site Assessment

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.

BLDG Projects

4468 North Elston Avenue, Chicago, IL 60630 30.9 miles

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.

Hudson Pro Builders

2434 E. Dempster St. #201, Des Plaines, IL, Des Plaines, IL 60016 38.3 miles

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.

Chicago Granny Flats

650 Waukegan Road, Glenview, IL 60025 39.9 miles

Licensed Eco-Friendly

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

Garage Builder Chicago

3839 North Harlem Avenue, Chicago, IL 60634 31.9 miles

Chicago-based Garage Builder Chicago offers custom garage construction, ADU development, and garage deck building. Services include garage conversions, detached ADUs, and permit handling, with timelines from 4 weeks to 6 months.

Bofran Builders

3922 North Ashland Avenue, Chicago, IL 60613 33.2 miles

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What you need to know

Searching for top Detached ADU ADU Contractors in Frankfort, Illinois? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).

Working with a qualified Detached ADU ADU Contractor in Frankfort ensures your ADU project meets local building codes, zoning laws, and permit requirements. Whether you're planning a detached ADU, garage conversion, or backyard cottage, experienced Detached ADU professionals can guide you through every step.

Frankfort homeowners are increasingly investing in ADUs to create additional living space, generate rental income, or support multigenerational living. The Detached ADU experts featured here bring local expertise and proven experience to help make your project a success.

Browse our listings to find the best Detached ADU ADU Contractors in Frankfort, Illinois, and get started today.

Detached ADU near Frankfort, IL