The cornerstone was laid in September 1916, and the chapel opened for Mass early in 1917. The chapel's architect, William J. Palmer, designed numerous residences and churches in Washington, D.C., prepared the plans and specifications for the church and attached Parish Hall. The Mission style may have been deemed appropriate to the church's status as a "mission chapel," or offshoot, of St. Thomas' Church in Croom, Maryland.
The chapel is constructed of poured-in-form concrete covered with a coarse pebble-filled stucco to resemble adobe. It is a one-story cross-gabled building with the entrance through the lower-gabled narthex. The structure is highlighted by a shaped parapet and bell tower. The interior is distinguished by its original altar balustrade and pulpit, and an ancient stone baptismal font brought from a church in England.