The architectural style of the chapel is a fusion and adaptation of ancient forms. The exterior was done in the Romanesque style, and the interior uses the Roman barrel vault for the nave. The dome of the apse, directly above the main altar, was done in a Byzantine style. The apse dome features a tile mosaic executed by Hildreth Meiere in the Art Deco style depicting Our Lady surrounded by six saints who were known for a strong devotion to her. They are:
