The City of Mason Zoning and Development Department is responsible for administering and enforcing the Master Plan and various city ordinances such as Zoning, Subdivision, Building Code, Floodplain, Historic Preservation, and Sign Code.

The Department staff provides to the City Council, Planning Commission, Historic District Commission, and Zoning Board of Appeals, and the Building and Sign Boards of Appeals assistance in making decisions regarding land uses and development proposals.

The Department reviews development plans for compliance with City Ordinances and assists citizens and developers to better understand land use policies and regulations.