Welcome to luxury living in the highly sought-after Observatory Hill. This exceptional 4BR end-unit townhome offers 4059 Sq Ft (3475 sf main + 584 sf coach) of premium upgrades and a combination of elegant design, functional living, and income-generating potential. The ground floor features a private in-law suite complete with a walk-in closet, 4-piece bath, and a spacious family room enhanced by a linear fireplace-perfect for extended family, guests, or a private home office. The impressive main level showcases soaring 10-ft ceilings, wide-plank hardwood flooring throughout, pot lights, and oversized windows. The open-concept layout is anchored by a stunning chef's kitchen featuring premium Wolf, Sub-Zero, and Asko appliances. An oversized 10-foot waterfall island, matching full-height slab backsplash, generous dining area, and dedicated study nook. The elegant living room is centered around a cozy gas fireplace, creating a warm and inviting atmosphere. The upper level offers a luxurious primary retreat with soaring 11-foot ceilings, a walk-in closet, and a spa-inspired 7-piece ensuite featuring heated floors. Two additional generously sized bedrooms, a full bathroom, and a convenient upper-level laundry room. The basement has heated floors, upgraded oversized windows, and a blank canvas awaiting your personal touch. Step outside to enjoy a private composite fenced courtyard with no-maintenance turf. Adding tremendous value is the rare self-contained 1-bedroom coach house with a separate entrance, separate heating & ac, full kitchen, bathroom, and private balcony. Ideal for rental income, multi-generational living, a nanny suite, or a private workspace, this versatile space offers endless possibilities. Located within a top-ranked school district(Bayview S.S) and close to parks, trails, shopping, transit, and all amenities, this is a rare opportunity to own a truly upgraded home in one of Richmond Hill's most desirable communities.