The earliest parts of the church date from the first half of the 14th century. They include, at the west end, the north and south doorways, the south porch and the lower parts of a northern porch tower and, at the east, the tracery of the main window. The nave in between was rebuilt during the mid-fifteenth century along with the present aisles. A new tower was constructed over the lane to the west which meant that the old porch tower could be shortened to make way for the addition of a clearstorey.

• St John Maddermarket Location (.pdf)
• The Nave of St John Maddermarket (.pdf)
• North and south porches Maddermarket (.pdf)
• Locating the Segrym screen panels in St John Maddermarket (.pdf)