Holy Trinity Chapel was originally a satellite church of the famed Holy Trinity (Episcopal) Church. The building was designed by the well-known architect Richard Upjohn in a Gothic Revival style. Edith WhartonAmong his other contributions that made this building unique were the (remaining) stained glass windows, including the authorrosette window, was married here intricately designed and immortalized the church carved wooden fretwork, and her time in her book "The Age of Innocence"a beautiful inlaid tile floor. The parish house, also with the property, is the only remaining building in New York of architect Jacob Mould. Despite alterations to the original building, St. Sava was placed on the National Register of Historic Places in 1982.