Grade II*
Parish church. Dated over entrance 1832, by Sir Robert Smirke (who was also the architect of the nearby Lowther Castle), incorporating features from the medieval church on this site. Snecked calciferous sandstone ashlar with eaves cornice and raised quoins, on chamfered plinth. Graduated green slate roof with coped gables and cross finials. Square south-west tower, four-bay nave/chancel with north transept and south aisle. Tower has round-arched studded south door, round-headed windows and round-headed twin bell openings. Nave has west studded doors in pointed arch under three-light window. Each side has round-headed windows. Three-light east window.

Interior has four-bay Gothic-arched arcade. Rear gallery, panelled pulpit and C19 panelled oak pews, the ends carved with Lowther arms. Various C19 white marble wall plaques. Transept was the burial chapel of the Sandford family of Askham Hall, hence C17 and C18 wall plaques to members of that family. Stem and bowl font dated 1661. C19 creed and pater boards.
Text from https://britishlistedbuildings.co.uk/101145271-church-of-st-peter-askham