Welcome to 1 Northwest Passage-an elegant and meticulously upgraded residence nestled in the heart of Barrington's coveted Atlantic Crossing neighborhood. Surrounded by manicured landscaping, conservation land, and refined privacy, this beautifully appointed colonial offers a lifestyle defined by comfort, craftsmanship, and coastal sophistication. Spanning nearly 4,700 sq ft across three finished levels, the home features five generous bedrooms, three and a half bathrooms, and a thoughtfully designed floor plan ideal for both daily living and entertaining. Highlights include a custom chef's kitchen with quartzite counters and premium appliances, a sunlit family room with fireplace, and a dedicated home office with built-ins. Upstairs, the primary suite showcases custom walk-in closets and a spa-level bath complete with heated floors, towel racks, and an infrared sauna. Enjoy seamless indoor-outdoor living with a heated saltwater gunite pool, new Trex decking, landscape lighting, and bluestone patio-perfectly positioned for gatherings. Additional upgrades include a whole-home water filtration system, dual laundry zones, tankless water heater, central vac, and a finished lower level with a guest-ready beverage station. Located just minutes from Barrington's Blue-Ribbon schools, the East Bay Bike Path, waterfront dining in nearby Warren, and the town's beloved coastline, this is a rare opportunity to own a move-in ready gem in one of Rhode Island's premier coastal communities.