Welcome to 4 Iroquois Avenue, this ultra-high-end custom semi-detached home was built by and exclusively lived in by the owner, featuring premium upgraded finishes and materials far beyond standard builder quality. Highlights include custom millwork w/ solid maple drawers, Italian and Spanish tiles, countertops, and a marble fireplace all from CIOT, high-end appliances, superior bathroom fixtures all from TAPs, and designer light fixtures from Prima Lighting. The bespoke residence has been thoughtfully curated with modern designs, offering 4100+ sqft of finished living space. A striking Indiana limestone facade, elegant mansard roof, and ornate window surrounds deliver exceptional curb appeal. Inside the open-concept layout features soaring ceilings and oversized windows. The kitchen is complete with Silestone countertops, a Franke farmhouse sink, Fisher & Paykel appliances, a hidden walk-in pantry, and custom cabinetry by Wood Studio with Blum and Hailo hardware. The living area centres around a Napoleon gas fireplace with a custom marble surround, built-in wall unit, and layered lighting from Prima Lighting. Upstairs, you'll find 4 spacious bedrooms, including 3 w/ private ensuites. A top-floor loft opens to a private terrace, ideal for a studio, office, or quiet retreat. The lower level, with an enclosed separate staircase and entrance, is easily convertible into an in-law suite or nanny quarters. Additional features include a 10" concrete block party wall w/ sound insulation, whole-home water filtration, ethernet wiring w/ boosters, 5-camera security system, curb-less showers, Mirolin soaker tub, spray foam insulation, structural slab garage w/ lower-level storage, and fully epoxied garage floor. Located minutes from Mentor College, Port Credit, Clarkson Village & Rattray Marsh waterfront trails. Quick access to downtown Toronto via GO Train or the QEW. This residence presents an exceptional opportunity to own in one of Mississauga's most coveted neighbourhoods.