John Newman goes into more detail: the earliest features of the church are the west arches of the north chapel (all now being blocked), as well as the south transept, all being built in the late 12th century.

By around the turn of the 13th century, the church had grown to include an aisled nave, as well as either transepts or chancel chapels.

The east piscina and the triple sedilia are cinquefoiled, featuring flattened arches upon detached shafts, as well as moulded caps and bases.

[4][2] The west tower begun construction during the late 13th century; this is evident in the remains of the lancets in the lower stage.

The spire is recessed and dates to the 14th century; it reaches a height of 63 feet, and is built in a Hertfordshire style.

This reconstruction work was continued slowly, and last until well after the Dissolution of the Monasteries; there are regular bequests to the rebuilding recorded between 1526 and 1562.

This resulted in the arcade being completed in timber instead of the intended stone: the piers are unmoulded posts, braced weakly.

The east window contains stained glass dating to 1919, depicting multiple brightly coloured scenes of the Passion.

A monument to Sir Thomas Palmer (dated to 1624) lies in the east of the north chapel; this was sculpted by Nicholas Stone.