St. Augustine's is a Gothic Revival church of buff brick on a limestone foundation, with stone trim and pointed-arch openings. Its front gable, centered on a large traceried rose window, rose between a tall corner bell tower and a shorter matching tower, the taller carrying an octagonal brick belfry and a steep spire topped by a cross. A round stair turret with a conical slate roof is set into the tower base. Lancet windows lined the flanks, and pinnacled buttresses divided the bays. The 1928 Tudor Gothic rectory adjoins the church. Today only the bell tower survives, its spire, rose-window opening, and stair turret intact above the cleared nave.
St. Augustine's parish was founded in 1874 to serve German Catholic immigrants in Hyde Park. The church's cornerstone was laid on May 3, 1896; the building was completed that year and dedicated on August 29, 1897, to the design of Louis Wessbecher. A Tudor Gothic rectory designed by Henry P. Hess and built by W. Diemert & Son was added in 1928. The Catholic parish later closed, and the property was purchased by Christ Baptist Church in 1982. The building sat vacant from 2014 to 2020. A fire on March 18, 2024, heavily damaged the structure; demolition of the fire-damaged nave followed that year, leaving the bell tower standing.
