There has been a church in Eggington ( originally spelt Egginton) since the Middle Ages, we know this from historical data. In fact it is feasible that the church could have been built by Eleanor, wife of Henry 111 in the 13th century. In those early days Eggington was in the diocese of Lincoln. It was transferred to Ely in 1837 and to St Albans in 1914. The monastic house at Grove, five miles away in the Parish of Wing, was sponsored by Queen Eleanor from which these building activities were encouraged.
It became a parish church in the 19th century when the building was enlarged and the 13 th century chancel again restored and the vestry added. The church was badly damaged by fire in April 1876 and then restored. It was once a chapel of ease to Leighton Buzzard and was granted a licence to bury dead in 1835.
The chancel windows are Victorian, consisting of tall trefoiled lancets. The only old features in the chancel are the image brackets either side of the east window and a square locker in the south wall.
The chancel arch is in two chamfered orders with a label, springing from responds with 14th century capitols and modern bases.