This one-of-a-kind island estate brings together distinctive midcentury architecture, thoughtfully curated interiors, and exceptional outdoor living. Set on a .52-acre lot in the heart of Isle of Palms, this five-bedroom, five-and-a-half-bath home offers a refreshing expression of coastal style just a short bike or golf cart ride from the beach.Originally built in 1964, the home underwent a comprehensive renovation to the studs in 2022. The current owners further elevated its interiors through a collaboration with designer Becca Jones and artist Teil Duncan Henley, introducing a vibrant mix of color, patterned wallpaper, and carefully selected finishes that complement the home's architectural character. Beyond the custom steel front door you will find soaring ceilings, warm woodaccents, and striking millwork that create an inviting first impression. The open kitchen, dining, and living spaces connect through expansive sliding glass doors to the pool terrace, creating an effortless flow for everyday living and entertaining. The kitchen features custom cabinetry, marble countertops, a Fulgor gas range, and a custom plaster hood, while a spacious adjoining pantry provides generous storage. A built-in wet bar with pecky cypress detailing and bold fuchsia cabinetry adds a distinctive touch. The thoughtfully arranged floor plan balances gathering spaces with private retreats. Three bedrooms with en-suite baths occupy one side of the home, while the primary suite offers a beautifully appointed bath and custom walk-in closet on the opposite side. A dedicated office overlooks the pool, and a mudroom with built-ins and a convenient hall laundry support everyday living. Above the attached garage, a spacious bonus room with a built-in bar, fifth bedroom, and adjacent full bath offers flexible space for guests and recreation. Outside, the private backyard invites lingering afternoons and relaxed evenings. A Brazilian hardwood deck surrounds the pool, complemented by a covered cabana, outdoor shower, and separate fire-pit seating area. The expansive, fully fenced backyard also features a putting green and open lawn for outdoor games. Established landscaping enhances the privacy and beauty of this inviting island setting. With its distinctive architecture, expressive interiors, and exceptional spaces for outdoor enjoyment, 1900 Waterway Boulevard offers a memorable Isle of Palms retreat.