The exterior and the church grounds are well kept, and there is a conservation area on the north side of the churchyard. Some interesting and well carved gravestones can be seen here. Just to the right of the south porch is a table tomb from 1711, denoting the final resting place of George Pare, his wife and three children, who all fell foul of smallpox in that year. Nearby, is a stone for Barnwell poet and writer Thomas Bell who died in 1863
The tower dates from around 1290, with the spire being added some 40 or 50 years later. There is a clock on the south face of the tower and it is interesting to see a very grotesquely carved face to the side of the clock, pictured below left, with huge ears and tongue stuck out in typical medieval gesture.
The priests door in the chancel is thought to have come from nearby All Saints church, when much of that was pulled down in 1825. In the wall of the north aisle there are three windows dating from the early 14th century. The north door is also 14th century. See Peterborough Churchcrawler for further information.