St Peter's looks like what it is; a tiny rural church, which has been overtaken by the 19thc. expansion of Cambridge N of Northampton Street and Chesterton Lane. More recently the crowding to which this pretty little church has been subjected has been exacerbated by the construction of housing to the NW, so that the casual stroller would probably miss it altogether. It is a single-cell rectangular church with a W tower of four storeys and an octagonal 14thc. spire with dormers. Construction is of stone rubble with pebble for the tower and ashlar for the spire. The church was rebuilt in 1781. It has a 13thc. S doorway, too late to be included here, and a 12thc. font.