Welcome to 148 Grandview Avenue. This is a lovingly maintained two-storey home set on a quiet, tree-lined street in the heart of Thornhill's established Grandview neighbourhood. Located in an area known for its many multimillion-dollar properties, this home offers a rare combination of warmth, flexibility, and immense long-term potential. Inside, you are greeted by over 1,500 square feet of bright, above-ground living, where the layout flows naturally across two levels. The main floor features a sun-filled living room with a classic stone-clad fireplace, a separate formal dining room, and beautifully preserved hardwood floors. The large kitchen offers limitless possibilities with easy access to the backyard. The second level features four spacious bedrooms and a full bathroom, as well as additional outdoor space. The lower level offers more than 750 square feet of additional finished living space, with a full bathroom and a kitchenette, creating incredible flexibility for a guest suite or a multi-purpose family zone. While the interior has been exceptionally cared for, the 49-by-125-foot lot is the true standout of the property. With significant side-yard width, the land serves as a rare canvas to expand the home's footprint or curate your own private outdoor space. Beyond the property lines, you are a part of a neighbourhood many wait years to get into. The home is situated in a top-tier school district, just minutes from Bayview Golf and Country Club and scenic walking trails. YRT and TTC transit are just steps from your door; commuting across the GTA is effortless. Owned by the same family for decades, this home has been truly loved. 148 Grandview isn't just a house; it's an opportunity to put down roots and build something meaningful in an unbeatable location.