Extraordinary custom residence designed by internationally recognized architect John Williams & more recently, several thoughtful design enhancements by Lauren Kyle McDavid of Kyle & Co. Ext w/ cedar shake-style cladding, substantial stonework, decorative corbels, stone chimney, carriage-house grg drs & a circular driveway that creates an estate arrival experience. Prof landscaped grounds, mature greenery & disciplined hardscaping provide privacy. An elegant form din rm w/ rich visual experience. Remarkable kitch w/ custom Wellington Millwork, Caesarstone surfaces, centre island w/ seating for 5+, luxury app & multi workstations. Great rm w/ flr-to-ceil stone FP, built-in seating & 6 sets of French doors connecting int spaces to surrounding grounds. Wine room/servery w/ glass-enclosed storage & WhisperKOOL climate control. Main-lvl bdrm & spa-inspired main flr bath w/ steam shower. Dramatic staircase leading to the upper lvl. Primary retreat w/ custom display cab, dressing rm, integrated wardrobe systems, sep den/vanity area, luxe 6-pc e-bth w/ dual vanity stations, freestanding sculptural tub, dual-user shower & water closet. 3 add bdrms w/ exceptional accommodations - all feature walk-in closets - one w/ priv ensuite bath. F-fin lwr lvl designed around entertainment w/ 9-ft ceil, kitch/bar (in-law potent), theatre w/ Optoma proj/retractable screen, games area, gas FP, fitness studio w/ mirrored walls & rub flrs, guest bdrm & a stylish 3-pc bath. Direct access via walkup from bsmt to 3-car grg w/ door to ext. Ext rivals that of a private resort w/ a covered screened pavilion w/ motorized screens & commercial-grade heaters, outdoor kitch w/ pizza oven, covered dining space & stunning in-ground pool w/ motorized cover system. Located in Ancaster's highly regarded Oakhill neighbourhood, residents enjoy prox to top-rated schools, conservation areas, shopping, restaurants, major commuter routes & more. A rare opp in one of Ancaster's most desirable settings.