Welcome to 40 Nightstar Drive, a stunning detached home situated in Richmond Hill's elite Observatory neighborhood. Fully renovated and updated in 2017 with a brand new interior layout and advanced mechanical systems, this home delivers pristine modern longevity situated on a premium, private, tree-lined ravine pie-shaped lot. It offers a cozy, custom rear deck tailored for exquisite outdoor entertaining with captivating, uninterrupted forest views creating an authentic, tranquil cottage vibe. The 4+1 Bedroom and 3+1 Bathroom luxury property has sun-drenched principal rooms with an airy, open-concept flow. It uniquely also has dual-living capability equipped with 2 fully independent kitchens and 2 separate full laundry rooms (Second and Lower level). The completely finished basement with a dedicated separate entrance can be utilized as a private in-law suite, multi-family unit, or a premium nanny retreat.Nestled directly adjacent to the iconic David Dunlap Observatory Park, which is proudly designated as a National Historic Site. This legal heritage designation acts as a permanent shield for local homeowners, strictly protecting the neighborhood enclave against high-density high-rise developers. This preserves the area's signature quiet charm, low-traffic safety, and long-term asset appreciation. Unbeatable commuter convenience just steps to Yonge Street transit links and the GO Station. Families will love the short walking distance to elite local parks, winding nature trails, major shopping plazas, Hillcrest Mall, and top-tier designated school zones including Sixteenth Avenue PS and Alexander MacKenzie HS. Minutes to Highways 404/DVP and 407. An absolute must-see property, appropriately priced to sell that stands in a league of its own!