Ballybryan Windmill, at 12 Portaferry Road, Ballybryan, Greyabbey, Newtownards, Co. Down, BT22 2RU

Ruined stump of a four level windmill pre 1777 windmill set in the middle of a field on a rise roughly half a mile south of Greyabbey. Most of the rubble built tower remains, though the cap has disappeared along with most of the exterior appendages. There are two ground level doorways with segmental arch heads, both now partly blocked, with a square recess above the S doorway which may once have contained a date plaque. There are a number of upper level openings, some of which now have damaged dressings. Remains of a small extension to E ‘side’. Remnants of cast iron cog track at top of stump, on which cap must have turned. Sections of this track have fallen off and are at base of stump. The mill appears to have been finished in rough cast at one time, elements of which are still visible. The stump measures roughly 10.5m in height x 5.8m in diameter.