Welcome to 378 Lakeshore Boulevard, a spectacular fully renovated front-to-back split-level residence offering exceptional craftsmanship, premium finishes, and a picturesque setting adjacent to the Massapequa Preserve. Completely gutted and rebuilt from top to bottom, this turnkey home showcases quality construction and thoughtful design throughout. From the moment you arrive, the curb appeal is undeniable, featuring a new asphalt driveway with Belgium block border, paver walkways, updated front porch, new siding, new roof, and beautifully landscaped grounds. Step inside to discover an open-concept main level designed for modern living and entertaining. The centerpiece is a stunning island kitchen featuring shaker-style cabinetry, Taj stone countertops, stainless steel appliances, gas cooktop, electric double wall oven, crown molding, and direct access to the outdoor living space. The upper level offers three spacious bedrooms and two beautifully appointed full bathrooms, including a primary suite with a private ensuite bath. Hardwood flooring spans the entire upper level, while custom tilework, walk-in showers, premium fixtures, and abundant natural light create a luxurious atmosphere throughout. The lower level features a spacious den highlighted by a gas fireplace, elegant Italian porcelain flooring, crown molding, and access to the backyard entertaining area. An additional fourth bedroom with a full bath offers flexible use as guest accommodations, home office, or private workspace. The home also includes an approximately 600-square-foot basement providing additional storage, utility space, and a dedicated laundry area. The outdoor living area has been designed for relaxation and entertaining, featuring a built-in swimming pool with a new liner and decorative water fountain, expansive paver patio, wood-burning fire pit, PVC fencing, and direct access from the home. Additional improvements include new heating and central air conditioning systems, new plumbing, new electric service with a 150-amp panel, new casement-style windows, new flooring throughout, updated bathrooms, new kitchen, in-ground sprinkler system, attached one-car garage, and attic access. Backing directly to the Massapequa Preserve, this remarkable property offers a rare combination of privacy, modern luxury, and quality construction. Every major component of the home has been replaced, including the roof, siding, windows, kitchen, bathrooms, flooring, plumbing, electrical system, heating and air conditioning systems, driveway, paver walkways, and pool liner, creating a truly move-in-ready residence that blends timeless design with today's most sought-after amenities. A rare opportunity to own a completely transformed home in one of Massapequa Park's most desirable locations.