Welcome to 852 Sisler Ave in Newmarket's coveted Summerhill Estates, where style, sophistication, and comfort come together effortlessly. This stunning semi-detached home offers 3 spacious bedrooms and 4 bathrooms, thoughtfully upgraded with a beautifully curated interior that feels straight out of a design magazine. An open-concept layout flows seamlessly beneath a striking skylight that pours natural light into the heart of the home, highlighting designer lighting, refined trim and millwork, spa-inspired bathrooms, and a chef-worthy kitchen complete with sleek cabinetry and premium quartz countertops. Upstairs, the primary suite delivers a private retreat with a 4-piece ensuite and generous closet space, while two additional bright bedrooms offer versatility for family living or a sophisticated home office. The fully fenced backyard with a walk-out deck and patio creates the perfect setting for intimate evenings or lively entertaining. A spacious widened driveway for added parking and extra storage in the garage with a built-in mezzanine. This home is also perfectly positioned near both elementary and high-schools, Nokiidaa Trail, parks, grocery stores like Metro & Natures Emporium, Shoppers Drug Mart, and steps away from Yonge Street amenities and transit. Get ready to make the most impressive semi-detached home in the neighbourhood yours.