[2] 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[3] and ultimately this led to the road becoming known as Bayview Avenue.

It was constructed as part of the Don Valley Parkway project, and necessitated the removal of "Sugarloaf Hill" directly north of the Bloor Street Viaduct.

With the creations of the Corktown Common in 2013, the southern end of the Bayview Avenue Extension now terminates at Mill Street.

A lengthy battle ensued between environmentalists, upset over continuing construction in the supposedly protected Oak Ridges Moraine.

The discovery of Jefferson salamanders in the study area resulted in several modifications to the design of the route, including a 70 m (230 ft) structure over a dry ravine, as well as five amphibian tunnels.

While Bayview was never renamed, a side street south of the hospital carries the name Kilgour Road today.

The southern end of Bayview Avenue starts at Mill Street in Toronto’s Corktown Common.

This is the western portion of the wealthy Lawrence Park neighbourhood, and just to the east is the Bridle Path, the single wealthiest area of Toronto.

The routes mainly serving Bayview Avenue are: Toronto (TTC): York Region (YRT):