A substantial building with 12th-century and later west tower, aisleless nave of c.1140 or earlier with four bays, 19th-century chancel of three bays and north vestry.
The building was restored 1856-7 by J. L. Pearson (Pevsner and Neave 1995, 582-4).
The local Jurassic limestone is very prone to decay, as can be seen on the exterior walling which is flaking or spalling, or has been replaced. The chancel had been apsed and rebuilt, not very well, in the Middle Ages. Charles Brereton described, and his wife Ada illustrated, the church immediately before the 19th-century restoration. There were remnants of the original apsed east end reused in the later medieval chancel (Brereton 1853-4, 228, 230; MacMahon 1953, 23). John Loughborough Pearson found the line of the apse when excavating for his new chancel shortly afterwards, but perhaps not all the old stones were reused by Pearson (for example capitals, etc., around the chancel doorway). When we first visited Kirkburn, there were rumours of left-over carved stones in farm buildings, but none were identified.
A full spread of sculpture of our period has survived, in corbels, south doorway, chancel arch and font. This sculpture is often figurative but there is also a lively variety of simpler designs. Even mass dials have survived, though the wall surface is fragile.
A large number of original corbels survives. There are 91 corbels in the nave and chancel in total, of which 8 near the tower are conventional mouldings and probably of post-medieval date; 22 are 19th-century restorations and 61 are original 12th-century work. These last are in poor condition, either they are blackened and difficult to read from below, or the black surface has decayed and the stone has decayed from within. Advantage was taken of scaffolding being used to replace guttering in July 2002. Photographs were taken from the scaffolding platform by Jeffrey Craine.
The photographed plan in church porch is from MacMahon 1953; also Wood 2003, Fig. 1.