Immaculately designed by award-winning interior designer Amalia Graziani, this 3,300± sq. ft. residence is ideally located south of the highway in Amagansett's coveted Lanes. Blending luxury and casual elegance, the home exudes an inviting atmosphere of radiant, understated sophistication. Newly completed, the 4-bedroom, 4.5-bath home was fully renovated and meticulously expanded, with every detail curated by a developer and interior designer to create a residence of unparalleled refinement. Bordering a reserve and set on .37 +/- acres, just moments from the ocean beaches, Amber Waves Farm Stand and restaurants, this rare Amagansett escape offers an extraordinary combination of space, character, and timeless elegance. The main level features a spacious living room bathed in natural light, streaming through expansive glass windows that frame serene views. A chef's kitchen, appointed with top-of-the-line appliances and gleaming marble countertops, flows seamlessly to the manicured grounds, while a formal dining room graced by a wood-burning fireplace is perfect for elegant entertaining. A striking wood-paneled great room, anchored by a handcrafted stone fireplace mantle and wood-burning fireplace, evokes the inviting spirit of an Adirondack retreat, where rich textures and natural materials create a warm, sophisticated ambiance. Alongside a first-floor primary suite defined by soaring vaulted wood-beam ceilings and exquisite architectural details complete with a spa-like bathroom featuring a soaking tub and double vanity, the main level also includes a versatile den or office, laundry area, and powder room. Upstairs, two generously appointed guest suites, each with its own ensuite bath, provide refined comfort and sophisticated privacy, with an additional guest bedroom located in the finished lower level. Outdoors, the home offers an ideal private retreat, featuring a sparkling heated Gunite pool surrounded by lush landscaping, a backyard firepit, state-of-the-art outdoor grill, and inviting terraces and patio seating areas-perfect for leisurely afternoons or entertaining with grace and style. With plans for expansion available, 103 Hand Lane is a rare offering that seamlessly marries timeless elegance, thoughtful design, and the quintessential coastal lifestyle.