Exceptional Income-Generating Detached Home with Coach House in Prestigious Cornell, Markham! A rare investment opportunity offering multiple income-generating possibilities. This beautifully maintained detached home features a fully self-contained coach house, ideal for homeowners seeking strong rental income, a valuable mortgage helper, multigenerational living, or flexible dual-living arrangements. Situated on a premium lot with parking for 3 vehicles (double garage + 1 driveway), this remarkable property offers approximately 2,000 sq. ft. (Main +Coach) living space, plus additional income potential from the coach house and future basement development.The property features 9-ft ceilings, a bright open-concept layout, elegant finishes, and spacious living and dining areas centered around a cozy fireplace. Enjoy a large front porch veranda and a professionally designed 3-tier deck with interlocking brick patio and gas BBQ hookup at the backyard for entertainment and gatherings. Offering 4 spacious bedrooms and 4 bathrooms (3 in main house, 1 in coach house), this home is ideal for growing families. Additional highlights include a large cold cellar with unfinished basement, ready for future customization. With minor modifications, the existing separate entrance can provide private basement access, creating potential for an additional income-producing suite.The fully self-contained coach house features its own private entrance, kitchen, bathroom, laundry, and separate living space-perfect for extended family/ for stable income generation. Projected rental income of approximately $1,700-$1,800/month makes it an excellent mortgage helper.Includes a full set of appliances for both the main house and coach house. Ideally located near top-ranking schools, parks, trails, Markham Stouffville Hospital, Cornell Community Centre, Mount Joy GO Station, and Highway 407. An excellent opportunity of investment with remarkable returns.