Welcome to 428 Twinleaf Street - a custom-built, designer-upgraded home in sought-after Vista Hills. Steps from top-rated schools and the GeoTime Trail, this 4-bedroom + den, 3-bath residence blends luxury finishes with practical, everyday comfort. The main floor features a true open-concept layout with premium white oak hardwood flooring throughout. The chef's kitchen shines with stainless steel appliances, a custom range hood, a massive island with seating, and a Sorso RO hot/cold water system-a perfect hub for family life and entertaining. The living area includes a sleek built-in gas fireplace, adding warmth and style. Upstairs offers four generous bedrooms, including a tranquil primary suite with a spa-inspired ensuite featuring a steam sauna shower, heated floors, and a heated towel rack. Laundry on the second level adds convenience. Loaded with smart-home upgrades, this home includes remote-controlled blinds on the stairway window, Ecobee thermostat, WiFi smart switches, and a myQ smart garage system. The oversized garage is finished with an epoxy-coated floor and outfitted with central vac, adding functionality and storage versatility. Outside, enjoy a fully interlocked backyard centred around a $10,000 Dekko built-in gas firepit-ideal for year-round use. With over $200,000 in premium upgrades and a walk-out basement offering potential for an in-law suite or future expansion, this home delivers exceptional long-term value. Move-in ready, meticulously upgraded, and located in one of Waterloo's most desirable neighbourhoods-this is a rare opportunity you don't want to miss.