**Luxury Rare Found Rear 70' Wide Backyard** Nestled in the prestigious and highly sought-after Observatory Hill Neighborhood, this exceptional home features over $500,000 in upgrades-nothing here is standard. Offering 4,386 sq. ft. above grade, plus a HEATED basement with oversized upgraded windows, this residence is thoughtfully designed for luxury, comfort, and functionality. The exceptional open-concept layout features 10-ft ceilings on the main floor and 9-ft ceilings on the second floor and basement, LED pot lights, and premium 7-inch hardwood flooring throughout. The chef-inspired kitchen showcases a HEATED floor, custom ceiling-height cabinetry, top-of-the-line built-in appliances including a Wolf gas cooktop, 42-inch Sub-Zero refrigerator/freezer, Wolf steamer and oven, built-in microwave, dishwasher, and beverage fridge. Elegant porcelain waterfall countertops and a matching porcelain backsplash add a sophisticated finish. A stunning double-sided fireplace wrapped in porcelain creates a seamless focal point between the kitchen and family room, offering warmth and elegance. The spacious primary bedroom features a customized walk-in closet. The luxurious primary ensuite includes a frameless glass oversized shower and heated flooring. A large retreat room provides exceptional flexibility and can be used as a gym, second closet, private office, or additional living space. The second and third bedrooms feature 10-ft ceilings and floor-to-ceiling windows, providing an abundance of natural light. A spacious third-floor loft offers a luxurious bar area and walk-out access to a large private terrace-ideal for entertaining or relaxing. The 70-ft-wide oversized backyard offers tremendous potential for outdoor living, landscaping, entertaining, or future possibilities. The basement also presents the potential for a walk-up basement. Top-ranked School Zone: Bayview Secondary School, St. Theresa of Lisieux Catholic High School, and Richmond Hill Montessori School etc.