The 173 East 73rd Street Building is a fine example of the type of private carriage house built during the late 19th and early 20th centuries in this area of Manhattan. Designed in the late Romanesque Revival style by Hobart H. Walker, who is best known for his work in Brooklyn, this carriage house was constructed in 1903 for J. Henry Alexandre who lived at 35 East 67th Street. The private carriage houses tended to be two- or three-story structures often designed in the most stylish architectural modes of the period. On the interior were two major ground-floor spaces–a front room for the carriages and a rear room with stalls for the horses.