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, bathrooms, and basement finishing.
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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.
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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 full utility connections.
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Moss Architecture is a leading Chicago ADU contractor specializing in accessory dwelling units, coach houses, and garage conversions. Following the 2021 Chicago ADU ordinance, they design detached ADUs, in-law suites, and backyard cottages across the city.
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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 design.
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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.
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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.
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MyHouse Construction in Skokie offers custom home builds, ADUs, garage conversions, home additions, remodels, decks, and pools. They serve homeowners seeking quality residential construction and renovation services.
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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.
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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 potential.
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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.
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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.
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FBC Remodel Naperville uses a Design-Build model for home additions, uniting architects and builders under one roof. Benefits include accurate budgeting, guaranteed pricing, permit handling, 3D renderings, and seamless integration with your existing home.
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Hendren Custom Homes builds ADUs in Valparaiso & Porter County, NW Indiana. From detached backyard cottages to garage conversions, costs range $40K–$130K with 4–8 month timelines. Expert guidance on zoning, permits & custom design.
read moreChicago made a landmark move in 2021 when it passed its Accessory Dwelling Unit (ADU) Ordinance, reopening the door to coach houses, garage apartments, and basement units that had been banned since 1957. This historic policy shift created an entirely new market for ADU contractors in Chicago, Illinois, making it essential to work with professionals who understand the city's specific zoning laws, permit requirements, and neighborhood pilot zones. Whether you're in Pilsen, Logan Square, or Woodlawn, finding the right ADU contractor can make or break your project.
One of the most unique aspects of building an ADU in Chicago is the pilot zone system. The city is divided into five designated pilot zones where ADU construction is currently permitted. These zones were strategically selected to address housing affordability and density in specific neighborhoods. Experienced Chicago ADU contractors must be well-versed in which zones allow which types of units, as regulations differ depending on your location. Working with a contractor unfamiliar with these boundaries can result in costly delays or outright project denial.
Chicago's ordinance permits two primary categories of accessory dwelling units:
Skilled ADU builders in Chicago will assess your property to determine which type of unit is feasible given your lot size, existing structure, and zoning classification. Properties in RS-3 zoning districts, which are common in Chicago's residential neighborhoods, are frequently eligible for ADU development.
Any reputable ADU contractor in Chicago will handle the full permitting process through the Chicago Department of Buildings (DOB). This includes architectural drawings, zoning approval, and multiple inspections throughout the construction process. Chicago's building code has specific requirements around:
Hiring a locally experienced ADU contractor in Chicago, IL is critical to the success of your project. Local contractors have established relationships with city inspectors, understand neighborhood-specific challenges like older building stock and limited lot sizes, and are familiar with Chicago's sometimes complex bureaucratic processes. They can also help homeowners take advantage of the city's Affordable Requirements Ordinance (ARO) incentives where applicable.
If you're considering adding an ADU to your Chicago property, start by consulting with a licensed, insured, and locally experienced contractor who specializes in Chicago's unique ADU landscape. The right professional will save you time, money, and stress from start to finish.