Welcome to 40 Endeavour Court - a private ravine sanctuary tucked at the end of a quiet Williamsburg court. Bordered by mature trees and ravine on two sides, this custom 5+1 bedroom home offers approximately 3,680 sq. ft. above grade and over 5,000 sq. ft. of finished living space designed for executive living and multigenerational flexibility. Soaring ceilings and expansive windows fill the home with natural light. The family room with gas fireplace flows into a chef-inspired kitchen featuring a 6-burner Thermador gas range with pot filler, Thermador double ovens and fridge, Bosch dishwasher, wine fridge, and a large centre island built for gathering. Walk out to the heated covered deck with outdoor gas fireplace for seamless year-round enjoyment. The primary retreat offers sunset views, two walk-in closets, and a spa-like ensuite with Jacuzzi tub and multi-jet shower. Four additional bedrooms provide ensuite or shared bath access, ideal for growing families.The finished walk-out lower level includes a second kitchen, 6th bedroom, 3-piece bath, gym, recreation space, and direct access to the backyard oasis - perfectly suited for extended family or guests.Outdoors, enjoy a heated saltwater pool, hot tub, multi-level decking, armour stone landscaping, and exceptional privacy. Additional features include a heated tandem 3-car garage, custom mudroom, main floor office, upper-level laundry, and Hunter Douglas blinds. Steps to trails, parks, and four schools within walking distance, this is a rare opportunity to secure space, privacy, and lifestyle in one of Whitby's most desirable communities.40 Endeavour Court is more than a home - it's a retreat.