An interesting monument of church construction in Kalush, about which the oldest historical information has been preserved, is the Roman Catholic church. According to academician V. Grabowetsky, the first information about the Roman Catholic church in Kalush dates back to 1450.
The first wooden church of St. Magdalene in the city of Kalush was built in 1464. In the same year, on April 5, according to the privilege of King Casimir IV Jagiellon (1446–1492), a Catholic parish was created. For musical accompaniment of the divine service, an organ was brought from Krakow to Kalush, and the necessary paraphernalia and books were purchased. The Roman Catholic parish in Kalush included 35 villages: Banya, Bodnariv, Berezhnytsia, Berlogi, Dovhe, Grabivka, Golyn, Humeniv, Kadobna, Kopanky, Kotyachi, Kropyvnyk, Pidhirky, Khotin, Yavorivka, etc.
The Catholic parish had significant economic support from the central government. In 1464, King Casimir IV Jagiellon presented the Kalush church with one salt vat (saltworks). The church retained this right to produce salt from one pan until 1680. The founding of the Catholic parish in Kalush was associated with the beginning of the development of the salt industry.
On March 29, 1469, King Casimir Jagiellonon restored the privilege of the church of St. Mary Magdalene.
In 1595, during the Turkish attack, the city was completely plundered and burned. Fires remained a constant danger. The building was severely damaged by fire in 1565. On December 3, 1578, King Stefan Batory (1576–1586) confirmed the previous foundation of the church. He issued a new privilege to the church, and the church was rebuilt. In 1695, both churches in Kalush - St. Valentine and St. Magdalene - were destroyed. In 1696, the church of St. Mary Magdalene had already been rebuilt. It was small, with a small signature tower. In 1764, a new wooden church of St. Valentine was built in Kalush on a brick foundation with the funds of the Czartoryski family.
In 1765, there were two churches in the city. The parish church of St. Valentine and the church of St. Mary Magdalene (location not yet established) The latter ceased to exist in the second half of the 1860s. It was rebuilt in 1770 from spruce wood and covered with shingles.
In 1841–1845, the Catholic shrine was bricked up. In 1876, a new tower was erected, and in 1886, new altars were built. During the hostilities in 1917, one of the chapels was damaged. The Austrian army confiscated the bells and organ pipes. In 1928, a new main altar was built by Jan Voytovych from Przemyśl. New images of Saint Valentine and the Mother of God Queen of the Polish Crown “Honoring the Estates” (“Honoring the Blessed Virgin Mary by the Social Estates”) by Lviv artist Stanisław Batowski (1931–1932). The church was restored in 1921 by the efforts of the Felczynski brothers’ firm, and in 1926 a new staircase was laid in front of the facade.
In 1939, the church was closed and converted into a granary, and later into a high school gym. In 1990, the church was transferred for temporary use to the UOC-KP community, and in February 1999, it was returned to the Roman Catholics of Kalush. It was repaired and the spire was restored. On the occasion of the raising of the cross to the top of the church in 2000, Pope John Paul II sent his congratulations.