The main rebuilding in the late 15th century included the raising of the nave roof, the insertion of a clerestory and parapets, and the refenestration of the nave and aisle. Most of the new windows were square-headed, with Perpendicular tracery, and five have canopied image brackets in each . A recess with a three-light window was built leading from the south-west corner of the chancel into an archway to the south aisle. The 15th-century south doorway, with moulded arch and head stops, retains part of its early door. In 1548 Somerset, the Lord Protector, acting on behalf of the boy king Edward VI, ordered that all imagery should be removed from churches, and by 1650 St Leonards had lost its rood screen and window statues. The hidden remains of the earlier wall decorations are now partially visible, including a stretch of masonry pattern enriched with rosettes and heart-shaped petals dating from the 14th-century on the west wall of the chancel and a late medieval figure, in black outline, of a crowned female saint with long hair on the east wall of the nave.