The Ladd Carriage House is a building in downtown Portland, Oregon, at Broadway and Columbia. It is one of the few surviving buildings forming part of the former grand estates which once stood in the downtown core. It is listed on the National Register of Historic Places.
The building served as a coach house and stables for the William S. Ladd mansion, once located across Broadway on the block bounded by Broadway, Columbia, 6th Avenue and Jefferson. The Carriage House was built in 1883, designed by architect Joseph Sherwin, to house the Ladd family's horses and carriages.
Wikipedia https://en.wikipedia.org/wiki/Ladd_Carriage_House
Coordinates 45°30'53.692" N -122°40'56.489" E