The Philadelphia Register of Historic Places is an inventory of properties that have been designated as historic by the Philadelphia Historical Commission. Today, all properties go through a nomination process before being added to the register.
The register is split into three documents that include:
- Properties with OPA-compliant addresses. These properties have official addresses that are recognized by the Office of Property Assessment (OPA), such as 237–49 Arch Street.
- Properties without official addresses, such as the Valley Green Inn. These properties instead use approximate addresses.
- Public interiors, objects, structures, and sites. For example, the Grand Court of the Wanamaker Building interior.
|Historic Register – OPA-compliant addresses PDF||An inventory of all designated properties on the Philadelphia Register of Historic Places that have official, OPA-compliant addresses.||November 6, 2023|
|Historic Register – Approximate addresses PDF||An inventory of all designated properties on the Philadelphia Register of Historic Places that lack official addresses.||January 20, 2022|
|Historic Register – Interiors, objects, sites, and structures PDF||An inventory of all designated interiors, objects, sites, and structures on the Philadelphia Register of Historic Places.||April 6, 2023|