Architect-designed ravine retreat on a quiet Stonegate cul-de-sac, backing directly onto Mimico Creek. Custom-built by architect Guido Costantino (of Buca fame), this glass-and-steel home, with over 2660 square feet of living space, was designed to maximize natural light and frame the ravine views. A dramatic 22-ft wall of glass anchors the open-concept main level, where stone tile flooring runs throughout the living, dining, and kitchen areas. Direct access to your private backyard oasis offers a seamless connection between indoor and outdoor living. Up the maple floating staircase, you'll find 3 bedrooms. Including a serene primary retreat with its own floor-to-ceiling glass, warm cedar ceiling detailing, and an open-concept ensuite where a freestanding tub sits at the foot of the bed. The finished basement adds extra living space, and storage. Beyond its striking design, the home is as efficient as it is beautiful, with a geothermal heating and cooling system delivering energy-conscious comfort year-round. Plus, there is enough private driveway and garage space for up to 3 cars. Previously featured in Toronto Life as a standout design showcase, this property is truly one-of-a-kind. In Stonegate-Queensway, you'll be tucked into a peaceful, nature-filled pocket of Etobicoke, yet exceptionally connected to the rest of the city. A rare architectural statement home in one of Etobicoke's most sought-after ravine settings.