The largest area in Mississauga
Erin Mills is a planned community in the city of Mississauga, roughly 32 km west of downtown Toronto. Erin Mills was conceived, planned and developed by the Cadillac Fairview Corporation.
Based on census and political bounds it is one of the fastest-growing area in Mississauga. Geographically, the area is by far the largest in Mississauga, covering much of the western section of the city. A number of managed creek courses pass through the area and eventually drain to the Credit River, and then Lake Ontario.
The first phase, Erin Mills South, known later as Erin Mills, was built in the early 1970s continuing through the decade. Erin Mills West, phase 2 of the "New Town" development, was completed in the mid-1980s and in 1989 third phase Erin Mills Central was fully developed. Up to 2010 Churchill Meadows phase 4 was mostly developed.
To the south of Erin Mills (south of Dundas Street, north of the QEW), lies the older housing area of Sheridan Homelands and bordering employment lands of Sheridan Park. This area is sometimes bumped with Erin Mills by both locals and others when referring to a location within it. The area has an inter-connected and heavily forested recreational trail system.