Round west tower, probably late C11 (probably not earlier) with Norman two-light round-headed bell-openings with dividing shaft and scallop capital, circular windows (probably not Saxon), and small two-light round-headed west window with incised zigzag surround.
TM1485 : Gissing, St. Mary's Church: Norman north doorway capital 2
Tall tower arch with zigzag carving in arch and plain inposts.
Chancel with north and south chapels of early C13 with Y-tracery windows.
Two-storeyed C15 north porch with flushwork panelling, diagonal buttresses, fleurons in arch and flanking niches.
Interior: C15 double-hammerbeam nave roof.
C15 north chapel roof.
Some C15 bench ends, remainder C19.
Early C17 screen to north chapel.