The church was built around 1434, with restoration in the 1870s. It consists of a nave with aisles, western tower, chancel, and north porch. Some parts of the demolished Bardney abbey were used in the church. The tower dates from the late 15th century and has battlements topped with eight pinnacles. It has six bells. The north aisle of 5 bays is from the mid-to late 15th century, the south aisle is of the same date. The piers are octagonal. There is a 17th-century north porch with benches. The chancel is made of brick; Some say the same bricks used to build Tattershall Castle. Inside are murals of 1935 by A. Willets depicting Saints, and there are carved angels in the roof timbers. There is a 19th-century reredos and a 15th century piscina in the south wall. There is also a 14th century figure originally from Bardney Abbey. At the west end of the nave is an incised slab to Abbot Richard Horncastle, died 1508, and three painted wooden panels recording charitable donations.

The font and choir stalls are 20th century. There are several architectural fragments from Bardney Abbey on display.

The two manual organ is by Cousans.

Restoration work was carried out in the 1870s at a cost of some £2500, during which the west end of the north aisle was formed into a baptistery.