Toronto’s most stunning private home is for sale for a cool $28 million

If you ever needed a reason to do your math homework, here’s one: Integral House, one of Toronto’s best and most architecturally important private residences, is up for sale. The 18,000-square-foot Roxborough Drive property is not currently listed on the Toronto MLS, but a Sotheby’s catalogue says the asking price is $28,000,000. A trio of Sotheby’s realtors will be holding an invite-only preview event at the property this week.

The sprawling modern home, completed in 2009, belonged to mathematician James Stewart, who made a fortune in calculus textbooks before dying of cancer in December 2014. Designed by Toronto architects Brigitte Shim and Howard Sutcliffe, Integral House is renowned for its sinuous, environmentally sensitive design, inspired by the shape of the mathematical integral symbol. It has, among many other amenities, a two-story living room built specifically to accommodate musical performances, with seating for up to 200 people. The gargantuan asking price makes this one of the most expensive properties currently on the market in Toronto. The only home listed on the MLS that even comes close is 68 The Bridle Path, a much less distinguished chateau-style mansion that’s selling for $25 million. Here, some pictures of Integral House’s interior: