An extraordinary modern estate designed by the award-winning architectural firm David Small Designs, ideally situated on prestigious Arnold Avenue in prime Thornhill-widely regarded as one of the most coveted luxury enclaves in Canada. Offering over 10,000 sq. ft. of refined living space, this remarkable custom residence delivers an unparalleled lifestyle defined by architectural brilliance, exceptional craftsmanship, and uncompromising attention to detail. Truly one of the most elaborate, thoughtfully designed, and visually striking luxury homes ever offered in Thornhill. A dramatic signature solid wood floating staircase anchors the home as a striking architectural centerpiece, complemented by soaring ceilings-13' in the great room and 10' on the second level-and an abundance of natural light streaming through multiple vaulted skylights. The seamless integration of modern design and timeless elegance creates a residence that is both grand in scale and warm in ambiance. Designed for elevated everyday living and exceptional entertaining, the home features expansive principal rooms and a stunning built-in wine cellar. The resort-inspired backyard is a private sanctuary, complete with a saltwater swimming pool and lounge area, extensive interlock stonework, and an exceptional indoor-outdoor solarium with a fully equipped BBQ station. Enjoy year-round entertaining under the covered veranda or beside the freestanding stone fireplace. A rare offering in one of Canada's most prestigious luxury pockets, this residence is ideally located just moments to the finest amenities-including Promenade Mall, top-rated schools, parks, and community centres-while a short walk to charming Old Thornhill, Centre Street Pond, and the BAYT. A true statement of modern luxury living in an elite neighbourhood.