Bayview Avenue follows the first concession line, laid east of Yonge Street. Over time, the concession road became known as East York Avenue, a reference to the division it formed between the city of Toronto and the township of East York. In 1931, James Stanley McLean constructed "Bay View" (now known as McLean House), a house overlooking the Don Valley with a view south down to Toronto Bay, on the edge of Moore Park and ultimately this led to the road becoming known as Bayview Avenue. On August 17, 1959, Bayview was extended south from Moore Avenue in Leaside to Front Street. The northern section of this extension was routed alongside Pottery Road to Nesbitt Drive. South of this, it wraps around a hill and descends into the Lower Don Valley, travelling parallel to the route of the Don Valley Parkway.