Location. Land. Legacy. 346 Bayview Drive presents an exceptionally rare offering in the heart of Lower Mt Pleasant, a custom-built residence set on a full one-acre estate, one of the largest residential properties available in the coveted 29464. With extraordinary land value and future potential, the property offers a unique opportunity to create a private family compound, incorporate an income-producing ADU, or secure a long-term investment in one of Mt Pleasant's most sought-after coastal communities. Framed by sweeping moss-draped live oaks and overlooking tranquil marsh vistas, the home embodies the essence of Lowcountry living-,offering an uncommon sense of space, privacy, and natural beauty just moments from the Charleston peninsula. Ideally located steps from Shem Creek, PatriotsPoint, and Mount Pleasant Waterfront Park, and only minutes from historic downtown Charleston and Sullivan's Island, the setting delivers a lifestyle that is both peaceful and remarkably connected. Designed for year-round coastal living, the home is wrapped in more than 1,600 square feet of expansive porches, each thoughtfully oriented to capture marsh views and Charleston's coastal breezes. From the gracious front porch illuminated by classic gas lanterns, to the screened porch with a wood-burning fireplace, to the oversized side porch designed for grilling and al fresco dining, every space invites relaxed entertaining and effortless everyday living. Beyond the porches, a resort-style outdoor retreat awaits: a heated saltwater pool with waterfall spa, expansive travertine terrace, and lush mature landscaping that creates a private sanctuary rarely found this close to town. Inside, nearly 4,500 square feet of refined yet comfortable living space balances elegant entertaining with practical daily living. The open-concept great room is anchored by rich walnut floors, a striking wood-burning fireplace, and custom built-ins that lend warmth and architectural character. At the heart of the home, the chef's kitchen blends beauty and function, featuring custom cabinetry, a walnut island with hammered copper prep sink, custom copper hood, gas range with pot filler, walk-in pantry, and a fully equipped scullery with additional sink, bar, and prep space. French doors from the casual dining area open seamlessly to the rear porch, while a formal dining room with vaulted ceilings and bespoke built-ins provides a refined setting for gatherings. The first-floor primary suite offers a peaceful private retreat, complete with 11-foot ceilings, direct porch access, dual walk-in closets, and a spa-inspired bath with soaking tub, double vanities, and an oversized walk-in shower. A private office with separate entrance, powder room, laundry room with chute, and mudroom complete the thoughtfully designed main level. Upstairs, a spacious second living area provides flexible space for a media room, playroom, or lounge. Three additional bedrooms--generously sized with excellent closet space are served by ensuite and Jack-and-Jill baths, while a large insulated attic offers abundant storage or future expansion potential. The property also features a three-car garage with workshop, bathroom, gym area, and outdoor shower, with ample room for vehicles, a boat, golf cart, and all the essentials of coastal living. Residents enjoy access to Bayview Acres' private path to Shem Creek, along with a community boat ramp, tennis courts, ball field, and picnic areas--amenities that further enhance the lifestyle appeal. The HOA is voluntary. The home is also conveniently located near top-rated schools, the Old Village, boutique shopping, acclaimed restaurants, and the Ravenel Bridge. 346 Bayview Drive is more than a home, it is a legacy property. A rare convergence of land, luxury, and location, offering the opportunity to live expansively today while creating lasting value for generations to come.