HISTORY OF STREETSVILLE
Timothy Street, after whom the former Town of Streetsville was named, was a very enterprising individual. In payment for his surveying work, Street received a substantial grant of land, which he used to establish industries on the banks of the Credit. His house at 41 Mill Street, built in 1825, is believed to be the first brick house constructed in Peel County; it remains at the site of his former milling complex.
Like most early Ontario communities, Streetsville relied heavily on its proximity to water for the power to operate its grist, saw, carding, and planning mills. Water power remained the key factor in Mississauga’s early industrial development of the 19th century, particularly in Streetsville.
In addition to meeting the village’s needs, Streetsville manufactured items for export at a early stage with its Woollen production at the Barber Woollen Mills, for example, once located (1840s-1880s) on the site of the present-day Reid Milling complex.
After the railway development of the 1850s bypassed Streetsville and the village lost the county seat to Brampton in 1867, it never fully regained the economic momentum it had begun to enjoy. It was not until 1879, with the arrival of the Credit Valley Railway, that Streetsville benefited from better links to Toronto and beyond. Streetsville, which has the highest concentration of heritage buildings in the City, incorporated as a village in 1858 and a town in 1962.
Amid the hesitation of many people, Streetsville amalgamated with the City of Mississauga in 1974. The Mayor of Streetsville at the time, Hazel McCallion, went on to become the Mayor of Mississauga, and remains one of Canada’s longest serving and best-known mayors.
http://www.peelpolice.on.ca/About%20Us/History%20Of%20PRP/Where%20We%20Work/History%20of%20Streetsville.aspx