A historic landmark is any single building structure, site or object, designated by the governing body as having particular historic, cultural or architectural significance.

Generally, a property is considered eligible for designation as a landmark if it is more than 40 years old. The criteria used for establishing a landmark designation are similar to the criteria used for designation on the State or National Register of Historic Places.

The Landmarks Commission is responsible for reviewing and making recommendations to the Governing Body on designating historical landmarks and sites in the city.