An incomplete round tower (h. 10.00 m) with a tall, narrow doorway near the top with inclined jambs and a flat lintel. The lower two courses on the L and the lower three courses on the R are carved with a shallow angle-roll flanked by a fine roll. There is a later round-headed doorway just above ground level. There is a window in the tower with an arcuated lintel, splayed on the interior. No sculpture.
An Early Irish Monastery was founded at Balla by St Mochua (Cronan) (d. 637) who was also the abbot. The Annals of Ulster record that the Abbey was burned in 780. Knox records that the Abbey, or at least the town, was also attacked in later centuries.