Looking for accessory dwelling unit companies in Columbus, OH? Call AccessoryDwellingUnit Solutions 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 involves several moving parts that shape your total budget. The biggest factor is whether you choose a prefabricated unit or a custom build on-site. Site preparation is also significant; if your land requires extensive grading, utility trenching, or foundation work, costs will climb. Your choice of finishes—like kitchen cabinetry, flooring, and siding materials—also shifts the bottom line. We help you navigate these variables to find a setup that fits your property. Exact pricing confirmed free on the call.

About this service

ADU companies offer end-to-end solutions, often handling everything from the first sketch to the final walk-through. You need these companies if you prefer a streamlined experience where one firm takes responsibility for design, permitting, and construction. They are ideal for homeowners who want to minimize the stress of managing multiple vendors and prefer a turnkey approach to adding a secondary residence to their property.

Frequently asked in Columbus

What are the disadvantages of ADUs?

Potential downsides to ADUs include the initial construction costs and the possibility of impacting your existing yard or privacy. You'll also need to factor in utility hookups and potential changes to your property taxes. Discussing these with a professional can help you make an informed decision for your Columbus home.

How much does an ADU cost in Ohio?

The cost for an ADU in Ohio, including Columbus, is highly variable. It depends on the size, design complexity, chosen materials, and any site-specific challenges. To get a precise figure for your property, it's best to obtain a detailed quote from an experienced contractor.

What are the rules for ADUs in Ohio?

Ohio has specific regulations for Accessory Dwelling Units that vary by municipality. In Columbus, you'll need to adhere to local zoning ordinances regarding size, placement, and setbacks. Working with a local professional ensures your ADU project meets all Columbus requirements.

Is an ADU allowed in Maryland?

This service is dedicated to providing ADU expertise within Ohio, specifically focusing on cities like Columbus. Maryland has its own distinct set of regulations for Accessory Dwelling Units. For projects in Maryland, it's advisable to seek out local contractors and authorities who are familiar with their specific zoning and building codes.

While Ohio may have different incentive programs or financing options available for homeowners looking to build ADUs, they would be distinct from California's. Inquiring with local Columbus resources can reveal relevant opportunities.

How do I get started with an ADU in Columbus?

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

All cities in Ohio →

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.