The interior is richly decorated with religious iconography and inscriptions and is simply furnished with a carved stone altar. The patterned mosaic-style tiling also features religious symbols, and a sealed entrance to a crypt lies in the south transept.
Outside, the east wall has a large cross with Alpha and Omega and the crossed keys of the Papal insignia. On the west wall is a low relief stone cross of Christ Crucified with INRI carved over the figures of Christ with two doves and lamb. The boundary walls and ornamental wrought iron gates, which feature religious emblems, form an historic ensemble with the Chapel.