From the City’s web site…

The Historic Preservation Commission shall act in an advisory capacity to City Council and the Planning Commission to implement the Historic Preservation Plan, to maintain and update a list of historic sites in the City, recommend areas, sites, buildings and structures for consideration as local historic districts, develop architectural guidelines for historic buildings and structures which may be recommended to City Council for inclusion in the architectural review standards of the Historic and Cultural Preservation Overlay District.
(City Code Sec 2-620.13)

The Historic Preservation Commission is a board created to maintain a list of historic sites in Chesapeake and identify areas or recommend structures which qualify for historic preservation.

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