Custom Estate proudly offered in prime Thornhill. Fully renovated, this sophisticated family residence offers custom finishes throughout. A dramatic open foyer & grand room with soaring high ceilings over 21 ft & cathedral ceilings set the tone further with light & volume; 24 x 24 limestone floors flow throughout this main level, while a three-level floating staircase anchors the home as a main architectural masterpiece. In the kitchen lies custom walnut cabinetry, stone countertops & premium built-ins which include a Subzero fridge, Wolf cooktop with Wolf fan, Miele dishwasher. 3 fireplaces add warmth throughout, along with a private office with natural wood built-ins. A lower-level home has been fully renovated. This private 5 star Oasis backyard is built for entertaining and for the fussiest critique buyer. Included is a betz concrete pool, water fall, hot tub , flagstone, and enter locked drive way. Full sprinkler system and much much more. Step inside 75 Arnold Ave where elegant design, spacious living and high end finishes take luxury to another level.