Cromac Avenue is part of Ormeau Business Park on the site of the old gasworks.
This area was according to Marshall surrounding or adjoining the Owen Varra (Blackstaff River). The name refers to a sloping or bending place and possibly refers to the old crooked course of the river. It was noted for its woods which were not cleared until the latter half of the 18th century. Lendrick’s map of Co Antrim (1780) shows Cromac along the Lagan, between the Blackstaff and Stranmillis. It was earlier known as ‘Ballycromoke'”. (Marshall). It is included in the list of streets in the Belfast Directory 1831-1832.