Welcome to 11 Alex Black Street a beautifully upgraded 4-bedroom detached home in the prestigious Patterson community of Vaughan. Boasting 10-ft ceilings on the main floor and 9-ft ceilings upstairs, this 3037 sqft residence (as per MPAC, excluding basement) seamlessly blends comfort, technology, and sophisticated design.Enjoy $100K+ in post-2023 upgrades (on top of original builder upgrades), including a custom walk-in closet in the primary suite, professionally landscaped Japanese-inspired front and backyard with premium interlocking, rare red Japanese maple trees, and luxury rose garden. Enhanced with high-end LED pot lights, designer light fixtures, Lutron smart switches, and full smart home system integration, every detail was thoughtfully curated.The chefs kitchen features custom cabinetry, an upgraded high-capacity range hood, quartz countertops, and a super-clean Miele dishwasher. The open-concept layout connects seamlessly to the spacious family room with a gas fireplace and hardwood flooring throughout.The main floor den serves perfectly as a home office or guest suite. Upstairs features a spa-inspired 5-piece ensuite in the primary bedroom and a custom walk-in closet, a second bedroom with its own 4-piece ensuite, and two additional bedrooms sharing a full bath. The home also includes smooth ceilings, wrought-iron pickets, and central vacuum rough-in.Located steps from parks, scenic trails, boutique plazas, and directly across from Eagles Nest Golf Club. Just 5 minutes to Maple GO (ideal for commuters), Mackenzie Health Hospital, St. Theresa of Lisieux Catholic HS, Alexander Mackenzie HS, and major highways. Don't miss this rare opportunity to own a truly turnkey, smart-upgraded gem in one of Vaughans most sought-after neighbourhoods.