The church in Mejlby was built in the 1100s with a nave, chancel and apse made of granite stones in the Romanesque style. It was restored in 1874 (the nave masonry was demolished and rebuilt). The north door is bricked up, the tympanum with 2 lions and a rope around it has been preserved. The tower was built in 1957 over a porch made of granite stones from 1874 and was given a western entrance, into which the south door was built.