Welcome to this extraordinary custom-built estate, ideally situated on a premium 53 x 213 ft lot on one of Richmond Hill's most prestigious streets in he highly sought-after Mill Pond community. Designed for both grand-scale entertaining and exceptional family living, this residence offers nearly 7,000 sq. ft. of luxurious living space with 4+2 bedrooms, 7 bathrooms, and soaring ceilings throughout, including 11-foot ceilings on the main floor, 10-foot ceilings on the second floor, and 9-foot ceilings on the lower level, creating a bright, open, and elegant atmosphere. The chef-inspired gourmet kitchen is equipped with top-of-the-line appliances, a custom pantry and servery, and a spacious breakfast area overlooking the breathtaking private backyard oasis. Walk out to the oversized glass-covered patio and enjoy seamless indoor-outdoor living. Exceptional features include a private elevator servicing all levels, three fireplaces, two skylights, and a stunning primary retreat complete with a spa-inspired 5-piece ensuite and custom walk-in closet. The fully finished lower level features heated floors, two additional bedrooms, a full kitchen, open-concept living and dining areas, a fireplace, a separate walk-up entrance, and dedicated bathroom facilities-ideal for a nanny suite, in-law accommodation, or multi-generational living. Step outside to your resort-style backyard featuring an inground pool, waterfall, custom-built gazebo with wet bar, dedicated change/heating room, outdoor 3-piece bathroom, and a 10 x 10 garden shed. The heated 3-car garage includes a side entrance and is lift-ready for automotive enthusiasts. The impressive 213-foot deep lot offers exceptional future potential, including the opportunity to construct a permitted garden suite (subject to municipal approvals), making it ideal for extended family living, a private guest house, nanny quarters, or income-generating rental accommodation.