194 Roxborough Dr, Toronto, ON M4W 1X8, Canada

James Stewart was a Canadian born mathematician that wrote over 30 bestselling calculus text books, which made him a small fortune. With the help of architect Brigitte Shim and Howard Sutcliffe, Stewart was able to construct his dream house, which is based on many mathematic formulas, before he died last year. It’s now for sale in Toronto.

Description: “A house that changed the cultural landscape of a city. Every detail is a piece of art. Passion. Curves. Voluminous space. One of a kind. The finest craftspeople from around the globe collaborated to create this iconic dwelling using the best materials imaginable. Over 17,000 sqft of mesmerizing space. Two understated stories from the front. Concave and convex glass upper structure, fabricated in Spain. Five stories of undulating glass walls at the back, built into the ravine. Never to be built again in anyone’s lifetime. Panoramic ravine views on 3 sides.

The passenger elevator services all five levels. Imagined around the concert hall, Integral House is all about music and entertaining. Music feeds the soul. Acoustically perfect concert hall easily seats 200 people, with an additional 100 guest in the upper galleries above. Cocktail lounges, bar, catering kitchen – the house has an incredible separation between public and private spaces. A total of 97 offset White Oak “fins” create the illusion of undulating curved window.

The spa level is all about health and well-being. Swim against the gentle current of the indoor exercise pool. Integrated with the pool is a hot tub. When activated, the water level of the pool lowers and the adjoining wall acts as a waterfall. In summer, the approximately 30 foot long window wall descends below grade to open the pool complex to the outdoors. Exercise room, sauna, change facilities, powder room, and wet sauna are found on this level. Walk-out to the stone patio and you sitting in the midst of nature. An unparalleled natural setting in the heart of one of Canada’s most prestigious neighborhoods. For ease of winter living, the driveway + walkways are heated; as is the flooring throughout the residence. Triple car garage. Three wood-burning fireplaces. A once in a lifetime opportunity to enhance your art collection by acquiring Integral House.”

  • Bedrooms: 4
  • Bathrooms: 8
  • Square Feet: 17,000
  • Address: 194 Roxborough Dr, Toronto, ON M4W 1X8, Canada


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Estimated value

$19,500,000 (for sale status unknown)


194 Roxborough Dr, Toronto, ON M4W 1X8, Canada


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