Experience the elegance of 15 Watt Avenue, a beautifully maintained and luxuriously appointed family home offering over 2,500 sq. ft. of refined living space. Thoughtfully designed with upscale finishes, versatile layout potential, and income-generating opportunity, this 3+1 bedroom, 4 bathroom residence is perfectly situated in a dynamic, walkable neighbourhood. The main level welcomes with a grand foyer leading into an expansive open-concept living and dining space, featuring rich hardwood flooring and detailed crown moulding. The oversized powder room is discreetly tucked away for added convenience. The chef-inspired kitchen boasts ample cabinetry, generous prep space, and upgraded stainless steel appliances (2022), seamlessly flowing into a spacious family room with a gas fireplace, ideal for entertaining in comfort and style. The skylit second floor features a wide landing and an oversized linen closet. The primary suite is a luxurious retreat with two closets, a cozy gas fireplace, and a spa-like 4-piece ensuite complete with a jacuzzi tub. A second oversized bedroom, formerly two, can easily be converted back (professionally quoted at $5,000), creating four full bedrooms upstairs. A third sunlit, south-facing bedroom and a full bathroom with double sinks complete the level. The fully finished lower level includes a private nanny/in-law suite with a separate kitchen, bedroom, living space, and full bath, plus laundry, a storage room, and direct garage access. The east-facing backyard offers an elevated balcony with stairs to a landscaped garden, ideal for elegant outdoor entertaining. Includes a shed, external storage room, central vacuum, 1-car garage & 2-car driveway. Steps to cafes, parks, shops, the St. Clair streetcar & the Eglinton Crosstown LRT. Transit at your door. A truly luxurious and rare urban offering.