Welcome to this magnificent, custom-built, lakefront estate (Emerald Lake) tucked away on a private court on 0.53 acres in prestigious River Oak Estates. Offering over 9,100 SF of luxury living, with 5 bedrooms, 6 bathrooms, and resort-style amenities, this architectural masterpiece exudes timeless elegance and sophistication. Step through the impressive front door into the grand foyer, where soaring ceilings, a dramatic cascading staircase, and a classic central hall plan greet you. The main level offers a living room with a gas fireplace, a 10-chair dining room, and a spectacular 2-storey great room with a gas fireplace with stone surround and serene lake views-perfect for hosting grand events or enjoying quiet family moments. The chef's kitchen features granite counters, a centre island, premium appliances (including a Sub-Zero fridge), a walk-in pantry, and a bright breakfast area with patio access, offering seamless indoor-outdoor living. A den/office/games room with a built-in bar, along with two conveniently located powder rooms, complete this exquisite main floor. The upper level boasts a luxurious primary wing with a 5-piece ensuite, dual walk-in closets, a private dressing room/lounge with balcony access, an office/exercise area, and a kitchenette/laundry room. 3 additional bedrooms, each with access to a bathroom, complement the space. An upper-level loft with a gas stove offers a versatile area for relaxation or work, while the catwalk provides sweeping views of the great room, entryway, and lake. The lower-level blends entertainment and convenience, featuring a newly renovated home theatre with motion-activated seating. A spacious recreation room offers additional space for gatherings. This level also presents great potential for a nanny or in-law suite, with an additional bedroom, a 3-piece bathroom, a versatile workshop/multi-purpose area (potential future kitchen), and a basement laundry/mudroom with walk-up access to the triple-car garage. The professionally landscaped, private grounds offer exceptional outdoor living, a true resort-style paradise featuring an in-ground pool, expansive patios, and an outdoor kitchen complete with a built-in BBQ and fridge. A covered gazebo/sitting area, surrounded by mature trees and offering peaceful lake views, provides the perfect spot to relax and unwind. Nestled in a private neighbourhood, just steps from Kiwanis Park, walking trails, the Grand River, and top amenities, with easy access to restaurants, shopping, top schools, and major highways, this is a rare opportunity to own an extraordinary property in one of Waterloo's most sought-after locations.