Number 1: ADU Construction in Columbus, Ohio
on GoogleCincinnati
Y2 Design Build is a Columbus design-build firm handling basement remodeling and ADU construction.
ADU builders in Cincinnati
The 9 ADU builders from Google's results for Cincinnati, Ohio, ordered by Google rating weighted by review count. No firm pays to be listed or ranked.
Last updated
- Garage conversion ADU
- $56,000 – $139,500existing structure
- Detached ADU
- $139,500 – $372,000new build, utilities
- Prefab ADU
- $111,500 – $279,000unit, foundation, install
- Cincinnati vs US
- -7%below the US median
Licensing in Ohio. Ohio has no statewide license for general contractors. Cities such as Columbus and Cleveland license or register them locally.
Number 2: Casita Home Builders
on GoogleCincinnati, OH
Serving Cincinnati and Northern Kentucky, Casita Home Builders designs and builds custom small homes, including ADUs and tiny homes. The team works from early concept design to finish details and walks homeowners through costs, permits, build timelines and energy efficiency.
(513) 776-9238 10551 Stablehand Dr, Cincinnati, OH 45242
Number 3: Wiel and Builders
on GoogleWest Chester Township, OH
Wieland Builders designs and builds custom homes around Cincinnati, either on a client's own land or on lots the company offers. It also handles teardown-and-rebuild projects, replacing an older house so owners can stay in their current neighborhood.
(513) 801-0860 7906 Tylersville Square Dr Unit D, West Chester Township, OH 45069
Number 4: Robertlucke Group
on GoogleCincinnati, OH
Robert Lucke Homes builds custom houses across Greater Cincinnati, on lots buyers already own or in its own communities. Current work includes Trailside Estates, a development of wooded lots inside the Milford School District, close to the Little Miami Bike Trail.
(513) 295-4242 8825 Chapel Square Dr B, Cincinnati, OH 45249
Number 5: Justindoyle Homes
on GoogleMason, OH
Custom ranch homes, larger luxury builds and condos make up the work of Justin Doyle Homes, which builds on owners' land or its own lots. Projects span Greater Cincinnati, Dayton and Northern Kentucky, including a condo development in Oakley.
(513) 445-2111 5378 Cox-Smith Rd Suite A, Mason, OH 45040
Number 6: Schumacher Homes
on GoogleMilford, OH
Schumacher Homes works on accessory dwelling units in the Milford, Ohio area.
(513) 327-7053 811 Chamber Dr, Milford, OH 45150
Number 7: Cincinnati
Cincinnati
Cincinnati.com is connected with accessory dwelling unit building in Cincinnati, Ohio.
Number 8: Fry Builds
Cincinnati, OH
Fry Homes designs and builds custom homes across Greater Cincinnati, with owner Ben Fry involved on each project. Services cover building on a client's lot, teardown and rebuild, and remodeling with additions, in areas such as Blue Ash, Indian Hill, Madeira, Montgomery and Symmes Township.
(513) 404-1276 4775 Glendale Milford Rd, Cincinnati, OH 45242
Number 9: Schmidt Builders
Cincinnati
Schmidt Builders is an ADU builder serving the Cincinnati area.
What ADU builders charge in Cincinnati
In Cincinnati, a garage conversion ADU typically costs $56,000 – $139,500. Remodeling labor in Cincinnati runs about 7% below the US median, which accounts for most of the difference from the same project elsewhere.
How to choose between them
- Check the license yourself. Where Ohio or Cincinnati licenses this work, the licensing board's own lookup confirms a license number in a minute. Do it before you sign, not after.
- Get three bids on the same scope. Written down, split into labor, materials, allowances and anything structural. Most people compare a total against a total and end up choosing between two different projects.
- Ask what is not included. Permits, debris removal, fixture and finish allowances, and repairs after demolition are the four that turn a cheap bid into an average one.
- Never pay a large deposit up front. A deposit to order materials and hold a start date is normal. Half the total before anyone shows up is not.
How this list is ordered
These are the firms from Google's results for "adu builders cincinnati", with directories, chains and suppliers removed. They are ordered by Google rating weighted by review count, and the ratings shown are Google's. No firm pays to be listed or ranked. The list was last updated in October 2026.
ADU builders in Cincinnati: common questions
Can I build an ADU on my lot?
It depends on your city and state. California, Oregon and Washington have state laws that make ADUs allowed on most single-family lots. Elsewhere it is set by local zoning, so check lot size, setback and owner-occupancy rules with your city first.