A once-in-a-lifetime opportunity to own the 1.48 acres of prime Lake Ontario waterfront! Welcome to 149 Sylvan Ave --- a rare 124 x 652 ft estate lot backing directly onto Lake Ontario, in one of Scarborough's most coveted waterfront enclaves. With over $1 million in whole house interior upgrades including pool, this 5+1 bedroom, 5-bathroom residence is built for luxury living and unforgettable entertaining.The resort-style indoor pool is the heart of the home: oversized and heated, with a motorized safety cover, cleaning robot, underwater lighting, 4 skylights, and a private shower. Stay active in the gym, unwind in the home theatre, or host game nights in the games room.Inside, smooth ceilings with pot lights run throughout. The chef's kitchen features top-brand appliances and a built-in water purifier. Two skylights and two fireplaces add warmth and natural light. The primary suite is a private retreat with a sitting area and wet bar, while the dining room frames views of the garden and the lake. Lower level office connects to a second wet bar for easy entertaining. A 3-car garage and two owned hot water tanks. The rain-escape deck in backyard with three-sided motorized screens lets you enjoy the outdoors in any weather - and don't be surprised if deers wander by to say hello. Waterfront estates of this scale rarely come to the market. Book your showing today! Click "Virtual Tour" for more photos!