This map layer shows commercial zoning overlays in the City of Columbus. The overlays are part of the zoning code, and provide additional standards beyond the base zoning code to implement council-approved plans and/or priorities. The overlay standards may increase, decrease, or add conditions to the minimum development standards of the underlying district or use.

This layer shows the individual buildings included in the Columbus Register of Historic Properties. The Columbus Register of Historic Properties is part of the zoning code and is the city's official listing of individual properties, groups, and districts of historic and architectural significance. Individual properties included in the register are subject to design review by the Historic Resources Commission.