Proctor Alley Livery Stable: Built in 1894, this building served as a horse stable for 14 years before being converted into an automobile garage, and later a condo building.

The Proctor Alley Livery Stable is a rare surviving example of a large-scale commercial livery stable with distinguishing features illustrating state-of-the-art technology for a late-19th century stable facility. The building was constructed in 1894 as a horse stable and carriage barn for an existing livery business that was headquartered in two buildings which fronted 12th Street NW. From 1894 to 1897, the building operated as the W.H. Penland & Co. stable, then as Mount Vernon Stables from 1898 to 1908, before being converted into a garage for the Terminal Taxicab Company.

Like other stable buildings, the historic landmark was later rehabilitated for residential use and is now known as the Fennessy Lofts, a condominium building.

DC Inventory: April 21, 1993

National Register: December 29, 1994