The church dates from the late 8th to early 9th century. Much remains of this highly unusual church.
It is a basilica with a semi circular apse, originally with an outer half sunk ambulatory. The nave was originally surrounded by a series of porticus, separate side chambers.
The exterior reveals impressive use of Roman building materials; slim bricks, stone and larger pieces of masonry apparently derived from Roman buildings in Leicester and Towcester. The tower is especially impressive with an austere almost round staircase tower attached.
The interior has white painted walls which emphasise the scale of the Saxon stone arches