Adu building — Columbus, OH
Last updated: September 24, 2026
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
Frequently asked in Columbus
What's the difference between ADU services and other home addition options in Columbus?
Are there any grants available for ADUs in Columbus?
How do I get a permit for an ADU in Columbus?
What is the typical cost to build an ADU in Columbus?
Can I build a prefab ADU in Columbus?
What are the advantages of adding an ADU to my home near Dayton?
How do I find a reliable ADU contractor in Columbus?
Also serving nearby: Dayton · Cincinnati · Akron · Toledo · Cleveland
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 Arts District, German Village, Victorian Village, Old North Columbus, Downtown — and every surrounding area.
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