Welcome to 1399 Willowdown Road, an exceptional custom residence inspired by Frank Lloyd Wright's iconic Prairie designs, nestled on a spectacular ravine lot with a picturesque creek in prestigious South Oakville. Offering over 6,800 sq. ft. of beautifully finished living space, this remarkable home features 5 bedrooms upstairs plus 2 additional bedrooms in the finished lower level. The main floor impresses with soaring 10' ceilings, wide-plank oak flooring, custom millwork and an open-concept layout. At its heart is a chef-inspired kitchen with an oversized island, quartz counters, JennAir Professional Series appliances, extensive cabinetry and a butler pantry, opening to the expansive great room and breakfast area. Enjoy seamless indoor-outdoor living from the covered lanai with a fireplace and skylights overlooking the ravine. The finished lower level is designed for entertaining, featuring a dedicated home theatre, billiards and recreation areas, exercise room, 2 bedrooms and a full bathroom. Additional highlights include Lutron lighting automation, remote-controlled blinds, built-in ceiling speakers, multi-camera security, illuminated stair treads, 9' upper-level ceilings and a double garage. Just steps from Coronation Park and Lake Ontario, and minutes to top schools, shopping, dining and GO Transit. A truly rare offering combining architectural distinction, exceptional space and ravine-side privacy.