What is CMX zoning?

CMX is shorthand for Commercial Mixed-Use. The number that follows the abbreviation indicates the level of density and range of uses allowed in the area, with 1 being the lowest and 5 being the highest.

CMX-1 and CMX-2 are designated for small-scale neighborhood storefront retail and office uses.

CMX-2.5 is used for pedestrian-oriented neighborhood commercial corridors, like East Passyunk Avenue.

CMX-3 is considered a community- or region-serving commercial category. It is found along the Central Delaware waterfront and in other neighborhoods where higher-density uses are encouraged.

CMX-4 and CMX-5 are found only in Center City. They permit the tallest buildings, most uses, and greatest density of any commercial zoning category in the city.