The church consists of a chancel, nave, N aisle, S porch and W tower. Portions of the fabric of the Norman church remain with herringbone masonry evident in the walls. The N arcade is 13thc. and the S side of the chancel has a 13thc. window, whilst the straight headed window in the N wall of the chancel and those of the N aisle are 14thc. The S porch has 14thc. timbers but was rebuilt in 1923. The Romanesque features are the chancel arch and the font. The W tower, though essentially Romanesque in date, has later openings.

Laneham is mentioned in the Domesday Survey in the lands of the Archbishop of York and as having a church and priest.

The chancel arch with its bold forms and fat roll moulding may date from c. 1170-90. (Ed.)