Opportunity knocks in the heart of Central Erin Mills! Welcome to 6074 Leeside Crescent, an intentionally designed and beautiful 42 bedroom, 4-bath home offering an over 3,300 sq ft of total living space in one of Mississaugas top-ranked school zones: John Fraser and St. Aloysius Gonzaga. The main floor greets you with bright principal rooms, a formal dining area, and a large eat-in kitchen featuring a centre island, generous cabinetry, and direct access to the backyard. Step outside to a private outdoor retreat with a stone patio, and a hot tub, perfect for entertaining or winding down after a busy day. Above, the primary bedroom is your personal sanctuary, complete with double closets and a spa-inspired 4-piece ensuite with a deep soaker tub and separate shower. Two additional bedrooms offer comfort and flexibility, sharing a well-appointed main bath. A rare architectural gem awaits on the mezzanine level, a stunning fourth bedroom with cathedral ceilings, an oversized arched window, and a cozy gas fireplace. Whether used as a guest suite, creative studio, or second family room, its an inviting and unforgettable space that adds depth and character to the home. The fully finished lower level adds even more value with two additional bedrooms, a kitchenette, 3-piece bath, large rec room with fireplace, and a separate entrance, making it ideal for in-laws, extended family, or rental potential. With hardwood floors, updated bathrooms, stucco exterior (2019), metal lifetime roof, and updated mechanicals, this home offers timeless quality and turn-key convenience. Located just minutes from Erin Mills Town Centre, Credit Valley Hospital, parks, trails, transit, and highways 403, QEW, and 407, this is a rare chance to secure space, comfort, and long-term value in one of Mississaugas most sought-after neighbourhoods.