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.