Discover unparalleled versatility and sophisticated design in this stunning detached masterpiece with over 3600 sqft of living space. This rare gem is designed for both grand entertaining and practical multi-generational living, featuring a spacious separate guest living area and a formal dining room for hosting elegant gatherings. The heart of the home boasts a gourmet chef's kitchen with premium finishes that flows seamlessly into a bright family room anchored by a cozy fireplace, complemented by a convenient main-floor powder room for guests. Retreat to the upper level where luxury meets comfort with two primary suites; the grand primary retreat offers a spa-like 5-piece ensuite and two separate walk-in closets (His & Hers), while a second primary bedroom features its own private 4-piece ensuite. With 9 ft. ceilings and high-end finishes throughout, this 4-Bedroom residence is as functional as it is beautiful. Beyond the main living space, this property offers incredible financial flexibility with a Legal 2-Bedroom, 1-Bathroom Basement Apartment. This fully permitted suite features its own private separate entrance, a full kitchen, a large living area, and dedicated laundry, making it the perfect high-value mortgage helper or a private retreat for extended family. The exterior is equally impressive, showcasing a striking brick and stone façade. Step outside to a private outdoor oasis featuring a manicured backyard lawn and a custom stone patio, perfect for summer BBQs and relaxation. The property is complete with a double car garage and a private driveway that accommodates 4 additional vehicles. Nestled in a quiet, upscale pocket just steps from a scenic conservation area, you are perfectly positioned near top-rated schools, parks, and major commuter routes including Hwy 412, 407, and 401. This is a rare opportunity to own a high-square-footage, move-in-ready home with an established income stream in one of Whitby's most sought-after neighborhood.