Welcome to Montgomery County, Ohio Building Regulations!

We serve…

  • The citizens and users of buildings in many of the jurisdictions in Montgomery County, including all of the townships and several of the cities and villages.

We enforce…

  • Building codes for new construction, additions, alterations, and changes in the way buildings are used.  We also enforce flood damage prevention regulations, and airport zoning around the Wright-Patterson Air Force Base.

We work with…

  • Local zoning and fire departments
  • Public Health – Dayton and Montgomery County
  • Many other state and local agencies involved in specific aspects of building construction and use approval, such as daycare licensing, public swimming pools, elevators, boilers, etc.

We investigate…

  • Building damage due to fire, vehicle impacts, wind, flood, etc.
  • Work done on, or occupancy of, buildings without required approvals or inspections

To learn more about our commitment to our customers click here.



The 2019 Residential Code of Ohio goes into effect July 1st, 2019. New code books should be available prior to the effective date, but in the mean time see links above and below.

To view the full code in PDF form, click here.

To view selected changes in PDF form, click here

To view the BBS Code Change Summary, click here


Commercial and Residential building codes can viewed online at: https://codes.iccsafe.org/public/collections/OH

Note this link takes you to the 2017 Ohio Building Code and associated commercial codes.  To access the New 2019 Residential Code of Ohio, click the “2019” book cover at the top of that page and you’ll be able to view the Residential Code.

Memorial Day Residential Storm Damage: Next Steps After Storm Damage

Quick Links

Contact Us

451 West Third Street, 10th Floor
Dayton, Ohio 45422-1070
Phone: (937) 225-4622
Fax: (937) 225-6327
E-mail: build@mcohio.org

Office Hours: 8:00AM - 4:30PM, Monday - Friday

Public Parking is available in the County Garage accessed off of Second Street.