Welcome to 74B Rathnelly Ave, a custom-built designer home in the prestigious Republic of Rathnelly, one of Toronto's most sought-after neighbourhoods, just minutes to Yorkville and close to top private & public schools. This exceptional residence offers a bright, open-concept layout with expansive principal rooms, large bedrooms, impressive ceiling heights & exceptional natural light. Featuring German-imported Schüco aluminum windows & doors with triple-glazed glass, wide-plank white oak flooring, sleek trimless design with drywall-groove detailing, custom wall panelling & millwork, statement mono-beam staircase, glass railings & upgraded architectural/strip lighting throughout. Stunning chef's kitchen with custom-painted cabinetry, premium Sub-Zero & Wolf appliances, Miele dishwasher & natural stone countertops including Super White. Natural stone continues throughout the home in the vanities, fireplace & basement bar, complemented by a dramatic 3-sided Marquis fireplace. Spa-inspired bathrooms feature premium CariMali Italian fixtures with Italian tile & slab finishes. A true showpiece is the incredibly rare two-level, double-height basement, creating extraordinary volume and openness with a massive rec/entertainment area, custom bar, extensive Italian slab finishes & flexible space for family living, gym or guests. Exterior features high-quality linear brick wrapping the sides/rear/walkout, extensive interlock including driveway, composite deck, composite fencing & an exceptionally large backyard for the neighbourhood. Comprehensive snow-melt system services the driveway, front porch, heated garage area, rear walkout & select backyard areas. Integrated heated garage, a rare find in Rathnelly, plus 2 furnaces, 2 A/C systems, high-efficiency spray-foam insulation, smart security, integrated speakers, central vacuum & more. A truly turnkey architectural statement offering exceptional space, design, craftsmanship & luxury in an A++ Toronto location.