Rarely does a home of this scale come to market in an established neighbourhood like McKellar Park. At 5,200 square feet across three fully finished levels, 620 Rowanwood Avenue is a newly built architectural home offering luxury finishes and thoughtful design, steps from the Ottawa River and minutes from Westboro and downtown.The two-storey foyer welcomes with a dramatic floating staircase, lit walnut treads, glass railing, and custom floor-to-ceiling built-ins. Hardwood throughout flows through the open main floor, where a stacked stone gas fireplace anchors the living room and a full wall of windows frames the backyard beyond. The chef's kitchen is appointed with flat-panel grey cabinetry, walnut accents, Bosch double wall ovens, gas cooktop, wine fridge, and a waterfall island. A covered rear deck, mudroom with dog wash, and main floor powder room complete the level.The primary suite is a true retreat, with a tray ceiling, walk-in closet with custom built-ins, and private access to the front balcony. The spa ensuite features full marble tile, a freestanding soaker tub, frameless glass shower, and dual floating walnut vanity. Three additional bedrooms, including two served by a Jack-and-Jill bath, a third full bath, and a dedicated laundry room complete the upper floor. The fully finished basement with separate entry offers incredible flexibility as a rental suite, in-law accommodation, home office, or all three, complete with open-concept living and dining, full kitchen, two bedrooms, full bath, plenty of thoughtful storage, and in-suite laundry. Double-car garage, tiered landscaped backyard, cedar fencing, and covered rear deck with wood-clad ceiling. This is the one you've been waiting for.