Accessory Structures in Dayton, OH (2026)
9 verified accessory structures rules for Dayton, Ohio, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Ohio has no statewide ADU mandate. Dayton ADU policies depend on local zoning. Some Ohio cities have adopted ADU-friendly ordinances; many have not.
Dayton ADU (Accessory Dwelling Unit) Rules
Some RestrictionsADU Permits
Dayton permits Accessory Dwelling Units under the Dayton Zoning Code (Code of Ordinances Chapter 150) as a conditional use in residential zoning districts containing detached single-family homes. The city revised its zoning code in February 2022 to allow ADUs by conditional use approval through the Board of Zoning Appeals. Building permits are filed through the Dayton Department of Planning, Neighborhoods & Development Building Services Division at the One Stop Center, 371 W. Second Street.
Dayton ADU Permits
Some RestrictionsADU Impact Fees
Dayton does not impose municipal development impact fees on residential ADUs. Ohio Revised Code does not authorize school, park, or library impact fees on residential construction. Dayton Building Services permit fees are scaled to construction valuation. Dayton Water and Montgomery County Sanitary Engineering tap fees apply only when new water or sewer service is required.
Dayton ADU Impact Fees
Few RestrictionsADU Owner Occupancy
Dayton does not require owner-occupancy as a permitted use standard for ADUs under Chapter 150. However, the Board of Zoning Appeals may impose owner-occupancy as a condition of approval on individual conditional use cases. Ohio HOAs governed by ORC Chapter 5312 (Ohio Planned Community Law) and condos under ORC Chapter 5311 (Ohio Condominium Act) may impose owner-occupancy through declarations.
Dayton ADU Owner Occupancy
Few RestrictionsADU Rental Restrictions
Dayton has no city-level rental registration ordinance, but Ohio law (ORC 5323) and Montgomery County require rental property registration with the Montgomery County Auditor. Dayton currently has no formal short-term rental ordinance; the city is procuring monitoring software (Avenu STR IP LLC) and handles STR concerns case-by-case. Ohio has no statewide rent control authorization. ADU long-term rentals have no minimum lease term beyond Ohio Landlord-Tenant Act defaults under ORC Chapter 5321.
Dayton ADU Rental Restrictions
Some RestrictionsShed Rules
Dayton allows small sheds without permits (typically under 200 sq ft per Ohio Building Code). Larger structures require permits and must meet setbacks.
Dayton Shed & Outbuilding Rules
Few RestrictionsGarage Conversions
Dayton may allow garage conversions to living space with building permits. No state law facilitating conversions - local zoning and parking requirements apply.
Dayton Garage Conversion Rules
Some RestrictionsCarport Rules
Dayton requires permits for carport construction. Setback requirements, height limits, and lot coverage maximums apply.
Dayton Carport Construction Rules
Some RestrictionsTiny Homes
Dayton regulates tiny homes differently based on whether they are on a permanent foundation or on wheels. Zoning and minimum square footage requirements apply.
Dayton Tiny Home & Small Dwelling Rules
Some RestrictionsLooking for Montgomery County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Dayton city rules.
Accessory Structures in Montgomery County →