
Trunk Bay Companies
Trunk Bay Companies. Real Estate Builders & Construction Company. 304 N Hershey Rd, Bloomington, IL 61704, United States
Looking for the best custom ADU builders in Bloomington, Illinois? Our directory features 16 vetted custom adu builders serving the Bloomington area. Whether you're planning a new ADU construction, garage conversion, or backyard cottage, find the right builder for your project.

Trunk Bay Companies. Real Estate Builders & Construction Company. 304 N Hershey Rd, Bloomington, IL 61704, United States

3-D Custom Homes LLC. Custom home builder. 3801 General Electric Rd #3, Bloomington, IL 61704, United States

Alverson Construction. Home builder. 1107 Chatham Ln, Bloomington, IL 61704, United States

Knapp Builders. General contractor. 418 Olympia Dr # 3, Bloomington, IL 61704, United States

Landmark Construction. Kitchen remodeler. 9 Westport Ct, Bloomington, IL 61704

Keystone Homes. Custom home builder. 2203 Eastland Dr Suite 6, Bloomington, IL 61704, United States

O'Neal Builders, Inc.. Home builder. 2401 E Empire St Suite C, Bloomington, IL 61704, United States

Long Custom Building & Remodeling Inc.. Custom home builder

Kris Spaulding Construction, Inc.. Contractor. 715 N Morris Ave, Bloomington, IL 61701, United States

Armstrong Builders of Champaign Inc.. Custom home builder. 1701 Tullamore Ave Ste. A, Bloomington, IL 61704

A&B Construction & Restoration, Inc. Roofing contractor

Hoffman Ochs Contractors. Custom home builder. 3807 General Electric Rd # 1, Bloomington, IL 61704, United States

Rave Homes. Home builder. 1603 Tullamore Ave C, Bloomington, IL 61704, United States

Doud Builders Inc. Home builder. 1713 Tullamore Ave Suite C, Bloomington, IL 61704, United States

Atet Construction Group. Home builder. 630 Oak Ct, Goodfield, IL 61742

Future Companies. Home builder
Bloomington is one of the top markets for accessory dwelling units in Illinois. With growing demand for affordable housing, ADU construction in Bloomington offers homeowners an excellent opportunity to add living space, generate rental income, or house family members. Our curated list of custom adu builders in Bloomington helps you find experienced professionals who understand local building codes, zoning regulations, and permit requirements.
ADU construction costs in Bloomington typically range from $150,000 to $350,000 depending on size, design, and finishes. Garage conversions are generally less expensive ($80,000–$150,000), while custom-built detached ADUs can cost more. Get free quotes from our listed custom adu builders to compare prices.
Yes, ADU construction in Bloomington requires building permits. Illinois has specific ADU regulations, and local zoning laws may have additional requirements. Our listed builders can help you navigate the permitting process.
ADU construction timelines in Bloomington typically range from 4–12 months, depending on the project type. Prefab ADUs can be installed in 2–4 months, while custom builds may take 8–12 months including design and permitting.