Can you build an ADU in Columbus, OH?

Unclear — verify with the town

A third-party article says Columbus permits several ADU types, but the official code text was not provided here and even the article says owner-occupancy and current standards should be confirmed directly with the city.

Confidence: low · Last researched May 2026

ADU rules

A third-party summary says Columbus permits several ADU formats, including detached ADUs, attached ADUs, interior conversions, and garage conversions, but eligibility depends on lot size, zoning district, and existing site conditions.

  • Lot must meet minimum size thresholds for some detached ADUs
  • Setbacks differ by zone
  • Height is capped by underlying zoning district limits
  • Combined lot coverage cannot exceed the lot's maximum coverage percentage
  • Exterior design compatibility may be reviewed
  • Owner-occupancy rules should be confirmed directly with Columbus Building and Zoning Services

Dimensional standards in Columbus, OH

Community Activity Center (CAC) — front setback10' min.; 25' max.
Community Activity Center (CAC) — side setback0' min. or 5' min.
Community Activity Center (CAC) — rear setback0' min., 5' min., or 10' min.

Related questions

Are ADUs allowed in Columbus, OH?

A third-party summary says Columbus permits several ADU formats, including detached ADUs, attached ADUs, interior conversions, and garage conversions, but eligibility depends on lot size, zoning district, and existing site conditions.

Full investor analysis

You've seen the general rule. The full Columbus, OH report shows which districts allow ADUs by-right vs. by special permit, the approval path and timeline, and the overlay/flood constraints that quietly kill ADU projects here. First town report is free.

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More about Columbus, OH zoning

View the full Columbus, OH zoning report →

This summary is AI-generated from public municipal sources and is not legal, engineering, or land-use advice. Always verify zoning with Columbus, OH officials before making decisions.

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