The Church is built of local knapped black flints with Bath stone dressings. There is a bellcote with two bells. There is a boiler house, and the church was originally being heated by "Hayden's hot air apparatus", now disused. The porch is on the Northern side of the building the front of which is an oak moulded archway, the timber being framed in red bricks - herringboned. The roof is of plain clay tiles. St. John's has stained glass windows from various makers including Burlison and Grylls, Kempe and Co., James Powell and Sons, C.E. Moore and A.L. Moore.