You can live by the lake with all the convenience of home—it is the best of both worlds! Welcome to 12 Sumner Crescent, a detached home tucked away on a crescent just steps from Lake Ontario. Offering over 2,300 sq. ft. of above-grade living space, plus a fully finished basement, this home delivers the ideal blend of comfort, space and lifestyle in one of Grimsby’s lakeside neighbourhoods. A spacious kitchen features a large island and breakfast bar overlooking the family room, complete with a gas fireplace and walkout to a bonus sunroom overlooking your landscaped yard. An open-concept living and dining area provides plenty of room for entertaining, while main-floor laundry, garage access and a powder room add everyday ease. Upstairs, three generously sized bedrooms include a spacious primary retreat with walk-in closet and 5-piece ensuite. The two additional bedrooms share a 4-piece bath. The finished lower level adds flexible space for a recreation room, home office, gym or family hangout, with new flooring added in 2026. Updates include interior painting (2026), heat pump (2023), gas washer and dryer (2020), and roof shingles (2019). Enjoy lakefront living with easy access to waterfront parks, scenic trails, the GO Station, marina, beach, schools, everyday amenities, and convenient QEW access. A wonderful opportunity to enjoy the Grimsby lifestyle.