Welcome to 803 Ridge Road, an extraordinary custom-built estate set on a private 0.81 acre escarpment lot with breathtaking views of Lake Ontario, the city, and the Toronto skyline. A gated entrance opens to a long, light-lined driveway, setting the tone for nearly 9,000 sq ft of finished luxury living. The grand foyer with soaring ceilings introduces elegant principal rooms, rich hardwood, custom details, and exceptional scale throughout. The open-concept kitchen and family room are anchored by a dramatic double-sided fireplace. The chef's kitchen offers extensive cabinetry, built-in desk area, premium appliances including a Capital 6-burner gas stove, Viking indoor barbecue, Miele deep fryer, Fisher Paykel dishwasher, Electrolux refrigerator, large Viking hood fan, and garden doors to the full-width rear patio. The family room showcases panoramic lake and skyline views, a second walkout, pot lights, and a built-in wet bar. The formal dining room, complete with fireplace, comfortably seats 18 and connects to a ventilated solarium, ideal as a cigar lounge or private retreat. A butler's pantry, mud room, office area, and updated powder room complete the main level. Upstairs, the primary retreat is entered through double doors and features a fireplace, private balcony, hidden wet bar with reverse osmosis, walk-in closet, and spa-inspired 7-pc ensuite. Three additional bedrooms each enjoy private ensuites, with two offering balconies overlooking the yard, lake, and skyline. The fully finished lower level offers a theatre room with 8 seats, projector, 130 inch screen and AV room, gym with mirrored walls, wine cellar, cedar closet, rec room/man cave with custom finishes, additional bedrooms, bathrooms, double laundry, and walk-up access. A 3-bay garage with car lifts, built-in speakers on each level, dumbwaiter, multiple HVAC systems, drilled well, cisterns, irrigation, and extensive updates complete this rare luxury offering minutes to major highways.