Exceptional Detached Home with Income-Generating Coach House in Prestigious Cornell, Markham! A rare opportunity to own a beautifully upgraded family home with a fully self-contained coach house, offering exceptional versatility and income potential. Situated on a premium lot with parking for up to 6 vehicles (double garage + 4 driveway), this property is truly a standout in the community. Boasting approx 3,000 sqft (2,495 sqft main house + approx 500 sqft coach house) of thoughtfully designed living space, the main residence features 9-ft ceilings on the main floor, a bright open-concept layout, and elegant finishes throughout. The spacious living and dining areas are enhanced with pot lights and a stylish 3-way fireplace, creating a warm yet modern ambiance. The upgraded kitchen is equipped with quartz countertops, stainless steel appliances, and a walk-out to a professionally landscaped stone patio-perfect for entertaining or relaxing outdoors. The home offers 5 generously sized bedrooms and 5 bathrooms, ideal for growing families. A major highlight is the fully self-contained coach house with a private entrance, complete with its own kitchen, bathroom, laundry, and independent HVAC system-perfect for extended family, guests, or rental income. Ideally located just minutes to top-ranking schools, parks, scenic trails, Markham Stouffville Hospital, Cornell Community Centre, Mount Joy GO Station, and Highway 407, offering both convenience and a vibrant lifestyle.