The Leaside Towers are the tallest buildings in East York, Toronto, Canada. They are a twin set of Brutalist-style apartment towers, with one facing north-south, and another facing east-west. Located at 85 Thorncliffe Park Drive near Overlea, they are the biggest section of the "East York Skyline". Their structural height is 129 m (423 ft), and they both have 44 floors. Their construction ended in 1970. Although their location is not in a prime residential area of Toronto, they provide panoramic views of Toronto's skyline and the Don Valley, which is why they chose to include large penthouses in the buildings.