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Sign Permits | Code Checks | Sign Inspections

Sign Dynamics can provide complete and accurate code checks and obtain sign permits for all exterior sign projects with cities, townships and counties.

Sign Permits are required for all outdoor signs.

Sign Dynamics can assist you with any of the permit processes below:

The local Zoning Department (city or township) determines the size and location of the proposed sign. They have certain criteria on how to determine the maximum sign square footage available and the set-back (front edge of sign) from the right-of-way. Most locations have a maximum height. For example Harrison Township is 60 feet and Washington Township is 6 feet.

The local Building Department (city, county or state) examines the structure and installation method to make sure the sign complies with local or state construction requirements. The Ohio Basic Building Code (OBBC) is commonly used for signs. Most large sign installations must meet an 90 mph wind load factor, and require stamped certified plans by a licensed engineer or architect.


An application must be completed showing sketch of building, location of signs in place, plot plan of area with streets indicated, attachment methods and landlord/owners signature. A separate application must be submitted if you need to apply through the county or state for a building permit for the sign.


The City of Dayton Zoning reviews the sign for size and location of the installation. After zoning approval, the sign application goes to the City of Dayton Building Department for review of the sign structure and installation method. The sign drawings may include fastener details (spec length and width of bolts, etc.), detailed wall structure, weight of sign and footer details.

Harrison Township Zoning reviews the sign for size and location. They do not have a building department, so the Montgomery County Building Department reviews the structure and installation method. If a sign is installed without a permit or according to approved specifications/code, the city or county has the legal right to have you remove the sign or change the installation method. If a sign is installed without a permit, does not meet local code and the city, township or county find out, it is possible the sign will be removed and never be used.


Most cities, townships and counties have a variance process if you want to install a sign that does not meet local zoning or building code. You can apply for a variance and state your case before the local Board of Zoning Appeals (BZA). This process usually takes 4-8 weeks.

Temporary Permits:

Most locations allow temporary signage for 30-60 days per calendar year. Typical applications are Grand Opening and Now Open banners. Some locations allow no type of temporary permits.