[2] The church is about 550 yards (500 m) south of the Tudor Chilton Hall and 1+1⁄4 miles (2 km) east-northeast of the centre of Sudbury.

[2][3] The nave and chancel of the church are Perpendicular Gothic, built of flint in the 15th century.

[1] The William Andrews Clark Memorial Library, part of the University of California, Los Angeles has a unique manuscript of a sermon preached at St Mary's by Matthew Lawrence at the time Ipswich Town Preacher.

The handwritten book, which mimics the style of a printed book, was produced by John Raymond and was sponsored by Lawrence as a gift for the groom's father, Sir William Armine, 1st Baronet, who had requested a copy.

The book was previously owned by the antiquarian, John Eglington Bailey and the designer, Richard Harding Watt.