The Cl5 square tower of random stone flint and brick has a castellated parapet a staircase turret and angle buttresses.
There is some knapped flint chequer work at the base and some flat work ornamantation on the east side, The south-west buttress has words above a canopied niche, commemorating the wife of John de None fielder of the Manor in 1300 and builder of the tower.
The south porch is C15 and bears the date on a wood panel in the apex of the Gable.
The Chancel, with a lead covered roof, is of the C14.
There is a fine canopied pew built for the Barnardiston family in 1610
incorporating part of the original chantry screen of circa 1430.
The chancel screen is dated 1619.
The church is rich in mural and other monuments.
Sir Thomas and Elizabeth Barnardiston , with recumbent figures.
3 other Sir Thomas Baarnardistons have tombs, one part of an Easter sepulchre, is now set up as a mural, the other has recumbent figures and the 3rd (d. 16l0) has an elaborate canopy, with kneeling figures.
Nathaniel Barnardiston and his wife has a mural with half- length figures.