Accessory dwelling unit cost — Columbus, OH | AccessoryDwellingUnit Solutions

Looking for accessory dwelling unit cost 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

Pricing for an ADU is driven by the quality of finishes, the foundation type, and the complexity of your site’s terrain. Projects on flat, accessible lots are generally more affordable than those requiring significant grading or utility trenching. Exact pricing confirmed free on the call.

Frequently asked in Columbus

What are the disadvantages of ADUs in Columbus?

The main disadvantages of adding an ADU in Columbus are the initial construction costs and the potential for increased property taxes. You'll also need to factor in the time for planning, permitting, and construction. However, the long-term benefits of increased property value and rental income are often significant.

How much does an ADU cost in Ohio?

What are the rules for ADUs in Ohio?

Ohio has general guidelines for ADUs, but Columbus has its own specific zoning ordinances and building requirements. These can include rules about lot size, setbacks, and how many ADUs are allowed per property. The pros can explain these local nuances.

Is an ADU allowed in Maryland?

This question pertains to Maryland, but our service is for Columbus, Ohio. In Columbus, ADUs are permitted under specific city regulations. We can help you connect with local professionals who understand these rules.

What are the rules for ADUs in California?

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: German Village, Short North, Victorian Village, Downtown Columbus, Grandview Heights, Clintonville — and every surrounding area.