 They were designed in the Romanesque Revival architectural style by prominent local architect George S. Cooper.The buildings, since converted into condominiums and a housing cooperative, were added to the National Register of Historic Places (NRHP) in 1994.On July 7, 1900, a building permit was issued to L. S. Fristoe and S. G. Connell for the construction of an apartment building at 1423 R Street NW.