The church building is basically rectangular in shape, and measures 63 by 33 feet (19 by 10 m).
It was designed in a combination of the Gothic Revival and Romanesque Revival styles.
The Gothic is found in the polychrome finish of the brick and stone, the pointed arch windows and doors, the wall buttresses, the battlements on top the corner tower, and the steeply pitched roof with steep cross gables.
The Romanesque is found in the short bell tower, the broad roof plane, the rusticated stone on the foundation, the entryway, and the quoins on the corners.
The main facade on the west side is dominated by a large stained glass window that is flanked by two smaller windows.
In the gable peak is a trefoil window below a large stone cross.
A small narthex is located at the main entryway in the tower.
The sandstone pillars of the portico are connected by a sandstone arch.
Wrought iron grill work is located in the arch.
Trefoils are cut into the sandstone railings.
Medium-sized windows dominate both side elevations.
The small extension on the north elevation was designed to house a pipe organ that was never installed.
The sacristy was in the extension on the south elevation.
The rounded apse on the east side of the building has four windows and is where the altar was located on the inside.
A small cross tops the gable on the east side of the church above the apse.
The church building is basically rectangular in shape, and measures 63 by 33 feet (19 by 10 m). It was designed in a combination of the Gothic Revival and Romanesque Revival styles. The Gothic is found in the polychrome finish of the brick and stone, the pointed arch windows and doors, the wall buttresses, the battlements on top the corner tower, and the steeply pitched roof with steep cross gables. The Romanesque is found in the short bell tower, the broad roof plane, the rusticated stone on the foundation, the entryway, and the quoins on the corners. The main facade on the west side is dominated by a large stained glass window that is flanked by two smaller windows. In the gable peak is a trefoil window below a large stone cross. A small narthex is located at the main entryway in the tower. The sandstone pillars of the portico are connected by a sandstone arch. Wrought iron grill work is located in the arch. Trefoils are cut into the sandstone railings. Medium-sized windows dominate both side elevations. The small extension on the north elevation was designed to house a pipe organ that was never installed. The sacristy was in the extension on the south elevation. The rounded apse on the east side of the building has four windows and is where the altar was located on the inside. A small cross tops the gable on the east side of the church above the apse.
Trinity Memorial Episcopal Church (Mapleton, Iowa)