Accessory dwelling unit companies — Columbus, OH

Looking for accessory dwelling unit companies in Columbus, OH? Call AccessoryDwellingUnit Pros for a contact a provider — no obligation. Licensed adu builders serve Columbus and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

What affects the price

Building an ADU is a custom project, so costs vary based on your specific choices. Site conditions are the biggest factor; if your land requires significant grading, utility extensions, or foundation work, those expenses add up quickly. Choosing high-end finishes, custom cabinetry, or complex roof lines will also push the budget higher compared to a standard design. Prefabricated units often offer predictable costs, while custom site-built structures allow for more flexibility but can be harder to estimate upfront. Exact pricing confirmed free on the call.

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Frequently asked in Columbus

What are the disadvantages of ADUs in Columbus?

Potential drawbacks of ADUs in Columbus include the impact on your existing yard space and potentially higher utility bills. Permitting can also take time, depending on the project's complexity. However, the benefits of increased property value and rental income often outweigh these concerns.

How much does an ADU cost in Ohio?

What are the rules for ADUs in Ohio?

Ohio has statewide guidelines, but Columbus also has its own specific zoning ordinances and building codes for ADUs. These rules address aspects like maximum size, height restrictions, and lot coverage. The pros can help you navigate these regulations for your property.

Is an ADU allowed in Ohio?

Yes, accessory dwelling units are permitted in Ohio. Many cities, including Columbus, are encouraging their development. However, it's essential to adhere to local zoning laws and building codes to ensure your project is compliant.

What are the rules for ADUs in Columbus?

Columbus has specific regulations regarding ADUs, including requirements for lot size, setbacks, and the number of ADUs allowed per property. Familiarizing yourself with these local rules is a critical first step in the planning process.

Also serving nearby: Dayton · Cincinnati · Akron · Toledo · Cleveland

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More on this: HUD ADU resources — ADU policy and financing research.

Service area details

913,175residents

4,137per sq mile

8ZIP codes served

Serving all of Columbus — population 913,175; about 4,137 residents per square mile across 220.7 sq mi. ZIP codes covered include 43085, 43201, 43202, 43203, 43204, 43205, 43206, 43207.

Neighborhoods served in Columbus: Short North, German Village, Clintonville, Grandview Heights, Olde Towne East — and every surrounding area.