The Grade I listed church is adjacent to Layer Marney Tower, and was built at the same time, early in the 16th century. It is of Tudor brick construction, with stone dressing on the buttresses. The tower, south aisle, south porch and (very rare) chancel porch have battlements. Internally the church is light and airy. The nave and chancel in the south aisle are separated by a 15th century screen: the north aisle is also separated into two sections, divided by a 16th century screen. The eastern section of the north aisle contains three magnificent monuments to members of the Marney family, while the western section contains a plough.