The church in Sarnowo was erected at the turn of the 13th / 14th century, originally it was called St. Magdalene. It was damaged in 1655 during the Swedish Deluge. It was rebuilt before 1881, also raising the neo-gothic burial chapel of Działowski family. Another fire broke out in 1938. It was rebuilt a year later, then the neo-gothic chapel and sacristy were added on the north side.
The church was built of erratic stones with layers of brick rubble and granite. It was built of bricks in the upper parts and at the gable. It received the form of an aisleless building, orientated towards the sides of the world, with a narrower, three-side ended chancel on the eastern side. The church is 24 meters long and 10 meters wide. The external façades of its presbytery were buttressed, two diagonal ones were also placed in the western corners of the nave. Inside, the chancel is topped with a reconstructed stellar vault.
Mroczko T., Architektura gotycka na ziemi chełmińskiej, Warszawa 1980.
Website odznaka.kuj-pom.bydgoszcz.pttk.pl, Kościół w Sarnowie, gm. Stolno pow. Chełmno.