Attention Builders, Developers & Investors | Vacant Land | Two Severed Lots (353A & 353B Ontario St) | 91 x 145 Total Lot | **Priced to Sell**An exceptional turnkey infill opportunity in the heart of Central Newmarket. A premium 91-foot frontage parcel that has already been severed into two fully buildable lots - each approximately 45 x 145 - offering the ideal setting for custom homes or a boutique multi-unit residential project. Both lots come with Committee of Adjustment approval for three-storey, three-bedroom homes, streamlining the development process and eliminating months of planning uncertainty. With all municipal services available at the lot line, this site is ready for construction, reducing cost and time to build.353A Ontario Street is approved for approximately 3,800 sqft., featuring a 3-storey layout with 3 bedrooms and 4 bathrooms - a design perfectly aligned with the strong buyer demand for luxury urban infill homes in Newmarket. Located within walking distance to Fairy Lake, Southlake Regional Health Centre, Main Street shops, restaurants, schools, and public transit, this address offers unmatched lifestyle appeal and resale potential. Whether you're looking to build, sell, or hold as an income-producing asset, this property represents a rare, high-yield opportunity in one of Newmarkets most desirable, walkable neighbourhoods.