First Troop Philadelphia City Cavalry Armory

Armory in 2017

1913 insurance map

The First Troop Philadelphia City Cavalry Armory is an armory building used by the First Troop Philadelphia City Cavalry in Philadelphia, Pennsylvania. It was built in 1901. ^[1] It is listed on the National Register of Historic Places and is the oldest military building in the United States that is still in service. ^[2]

The Armory building is at 22-42 South 23rd Street. ^{[3] [4]} It is made of granite and it faces Chestnut Avenue.

Troop Philadelphia City Cavalry Armory in 1863

Entrance

Newman, Woodman & Harris were the architects of the building. ^[5]

A multiple property nomination for Pennsylvania's National Guard armory buildings was made to the National Register of Historic Places. ^[6]

See also

• Rittenhouse Club
• Rittenhouse Square
• National Register of Historic Places listings in Philadelphia
• National Register of Historic Places listings in Center City, Philadelphia

External links

• Armory website

References

1. "First Troop Philadelphia City Cavalry Armory Restoration". Tevebaugh Architecture. Retrieved 18 August 2025.
2. "The First Troop Philadelphia City Cavalry - Armory Building". Hatzel & Buehler. Archived from the original on 14 February 2025. Retrieved 18 August 2025.
3. "Digital Collections: Armory of the First City Troop Philadelphia Cavalry". Free Library of Philadelphia.
4. Splain, Shelby Weaver (June 20, 2018). "Just Listed! PA's National Register Listings - Pennsylvania Historic Preservation".
5. "-- holding: First Troop, Philadelphia City Cavalry, Armory, 23rd & Chestnut Sts., Philadelphia, Pa. -- Philadelphia Architects and Buildings". www.philadelphiabuildings.org.
6. https://npgallery.nps.gov/NRHP/GetAsset/NRHP/64500536_text