It was built by prominent brewer Enoch Turner in 1856 on Sherbourne Street just north of Dundas St.
The area changed again dramatically in the 20th century, becoming one of the poorest in Toronto; home to a working class and transient population with the old houses left in poor condition.
Hellmuth, who founded the Toronto Lawn Tennis Club in 1874, and in 1881 won the first Rogers Cup.
In the 1960s Allandale was slated for demolition, as it and its neighbours were to be replaced with a public housing project, similar to the nearby Moss Park.
Instead a new form of public housing was tried by architects Jack Diamond and Barton Myers.