The church, originally dedicated to John the Baptist, has a single-aisled Romanesque nave from the 12th century, of which the north facade is partly made of tuff stone, and a five-sided closed Gothic choir from the 14th century.

[3] The tower was built under the direction of Cornelis Claesz from 1548 to 1549, according to the foundation stone.

[2] The two other bells are modern, originating from a Roman Catholic church in Bussum.

[3] The organ from 1761 by Gerard Stevens was converted in 1764 by Albertus Antonius Hinsz.

[5] Media related to Johanneskerk, Tzum at Wikimedia Commons