Welcome to 4124 Preston Avenue, a beautifully maintained 4-level side-split nestled on a private, tree-lined corner lot in Niagara Falls' desirable north end. Offering 3 bedrooms, 2 bathrooms, and over 1,300 sq. ft. of thoughtfully designed living space, this solid brick and stone home combines comfort, character, and exceptional versatility. The bright main level features hardwood flooring, pot lights, California shutters, and a charming archway sitting area-perfect for enjoying your morning coffee. The updated kitchen is equipped with quartz countertops, a breakfast bar peninsula, and a sliding patio door walkout to the private backyard, creating an ideal space for everyday living and entertaining. Upstairs, you'll find two spacious bedrooms and a well-appointed 4-piece bathroom complete with a jacuzzi tub and shower combo. The lower level offers large windows that fill the space with natural light, a cozy wood-burning fireplace, custom oak built-in cabinetry, a third bedroom, and an updated 3-piece bathroom. A separate walk-up entrance to the lower level from the fourth level provides excellent in-law suite or secondary living space potential, making this property an attractive option for multi-generational families, investors, or buyers looking to live in one portion of the home while creating additional income opportunities. Outside, enjoy outstanding curb appeal with mature landscaping, large trees, a covered front porch, stamped concrete double-wide driveway, detached single-car garage, backyard concrete patio, and an elevated setting that offers privacy and picturesque views. Income-generating solar panels (rental item until 2033) further enhance the property's value. Conveniently located with quick access to the QEW and Highway 406, and just minutes from schools, parks, trails, shopping, restaurants, and all the amenities Niagara Falls has to offer! A true pleasure to view and show.