means the area consisting of the erven or lots, with or without public open spaces, excluding commonage land and land which consists of any other open space which has not been developed or reserved for public purposes and of the streets bounded by erven or lots or such public open spaces in a city, borough, town, village or township which is under the jurisdiction of a city council, municipal council, village council, town board, village management board, local board, local administration and health board, or health committee, and includes such an area as aforesaid under the jurisdiction of any other local authority which the Administrator concerned has, by notice in the Provincial Gazette, declared to be an urban area for the purposes of this Act.
[Definition substituted by section 1(b) of Act No. 43 of 1985]