On new property on K Street, purchased by the church, the architect Philip H. Frohman was engaged to design a new building. During a prolonged period of construction, the parish worshiped at St Thomas Church near Dupont Circle. The first service was held in the new church in June 1948. Numerous additions of stained glass windows and appropriate religious adornments had been added in the intervening years. In 1966, St. Paul's celebrated its centenary with a liturgy of consecration. On October 5, 2008, the newly expanded parish hall was dedicated by the Bishop of Washington, John Chane. The new parish house incorporated the Gray and Carwithen townhouses that were adjacent to the church.