Tucked at the end of a private cul-de-sac directly on the marsh of the Amelia River, 1301 Autumn Trace presents brand-new custom construction designed for refined coastal living. Set for 2026 completion, this 5-bedroom, 4-bath sanctuary offers 3,440 square feet of light-filled interior space across three elevator-serviced levels, perfectly paired with sweeping tidal views, covered porches, and dual rear balconies. Timeless board-and-batten siding, black Bahama shutters, a paver driveway, and a two-car garage create immediate curb appeal. The main level showcases 10' ceilings, wide-plank luxury vinyl flooring, and an open layout tailored for entertaining. At its center, the chef's kitchen boasts a quartz waterfall-edge island, custom oak and white shaker cabinetry, and a walk-in pantry, complemented by a private wet bar finished with rich dark-green cabinetry. A versatile first-floor guest suite provides comfort and privacy. Upstairs, the primary retreat serves as a peaceful haven with with its own marsh-view balcony and a spa-caliber bath featuring a freestanding soaking tub, an oversized walk-in shower, and dual vanities. The third level expands the living area with three spacious bedrooms, two full bathrooms, a central loft, and a dedicated laundry room. Outside, low-maintenance Trex composite decking and black cable railings maximize the panoramic waterfront setting. A private boardwalk with seawall leads across the marsh to a 12'x12' platform, offering direct Amelia River access for boating, paddleboarding, and fishing. A rare opportunity to secure custom new construction on pristine marsh-front acreage in one of Fernandina Beach's most coveted coastal enclaves.