The three-aisled basilica with choir square, semicircular apse and apsidioles in the east end of the aisles was built in the first half of the 13th century. It had cross-vaulted aisles and a flat ceiling above the nave and six-bay arcades that separated the nave from the aisles. The present-day tower was built around 1300 in the west end of the church. It displays a multiple-stepped pointed arch portal. The revealed gemel windows and niches in the outer wall of the tower are Early-Gothic as well.