Introducing 515 St. Moritz Avenue, a CUSTOM-BUILT luxury residence on a premium 54-ft wide lot, offering 5 bedrooms, 5 bathrooms, a bonus room, 2,700+ sq ft above grade, and 1,200+ sq ft of finished basement, all BACKING ONTO GREEN SPACE with no front neighbors for exceptional privacy. A grand open-to-above foyer welcomes you into elegant living and dining spaces, rich hardwood flooring, and 9-ft ceilings throughout. The gourmet kitchen features granite counters, oversized island, pantry, coffee station, and premium finishes, flowing into a private backyard retreat with an oversized custom deck and privacy fencing. The stunning great room is anchored by a dramatic floor-to-ceiling stone gas fireplace, while the main level also offers mudroom, garage access, and 5 total parking spaces. Upstairs, enjoy the luxury primary suite with custom walk-in closet, including a spa-inspired 5-pcs ensuite, 2nd master bedroom offers 4-pcs ensuite, plus two additional spacious bedrooms, a 5-pc bath, and upper-level laundry. The finished basement with separate entrance adds exceptional versatility with an additional bedroom, kitchenette, gym, second laundry, and in-law potential. Complete with armour stone landscaping front and back, this residence offers timeless luxury just minutes from top schools and the University of Waterloo.