Ballybeen (from Irish Baile Bín, meaning "Bín's townland"), also known as Ballybeen Housing Estate, is the second-biggest housing estate in Northern Ireland. It is in the town of Dundonald, on the outskirts of east Belfast. It lies within the townlands of Ballybeen and Carrowreagh, between the Newtownards Road and Comber Road. Started in 1963, and mostly completed by 1971, the estate consists of some 2,400 dwellings. Most of the street names are Scottish in origin (Enler and Brooklands being the exception) as the architects who designed the estates layout mostly came from Scotland. It lies within the Borough of Castlereagh and the Belfast East Parliamentiary and Assembly constituency.