Adu permit — Columbus, OH

Last updated: September 24, 2026

It's a question we hear a lot, especially with the increasing interest in versatile housing options. Many Columbus homeowners are looking for ways to maximize their property's potential, whether it's for family, guests, or rental income. You might be wondering about the practicalities: how much space do you really need, and what are the first steps to take? Is it straightforward to get an ADU approved in Columbus, or are there specific hurdles? Understanding the costs involved, even before you get a formal quote, is also a big concern. We know you want clear, honest answers without any jargon. That's why we make it simple to connect with experienced professionals who understand the Columbus market. Don't let uncertainty delay your plans for enhancing your home. We're here to provide the information you need to make informed decisions about adding an accessory dwelling unit. Let us help you explore what's possible for your property.

What affects the price

Building an ADU involves several moving parts that shape your total investment. The final figure depends heavily on whether you choose a prefab unit or a custom build from the ground up. Site conditions are another major factor; if your property requires extensive grading, utility trenching, or foundation work, costs will climb. You also have to consider your choice of finishes, like high-end appliances or custom cabinetry. Navigating local permit fees and impact assessments also adds to the total.

About this service

Obtaining an ADU permit is the legal process of getting city approval for your secondary structure. You need this documentation before any construction begins to ensure your build meets local safety and zoning codes. The permitting phase can involve architectural plans and engineering reviews. Fees and design costs for this stage typically add several thousand dollars to your project. Exact pricing confirmed free on the call.

Frequently asked in Columbus

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

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, Victorian Village, Clintonville, Grandview Heights, Franklinton — and every surrounding area.