Welcome to 676 18th Street, a rare jewel nestled in the heart of Manhattan Beachs esteemed American Martyrs neighborhood. This custom Coastal Plantation-style estate, which was thoughtfully reimagined by RJ Smith Construction, radiates modern opulence and coastal elegance, inviting a sophisticated beachside lifestyle. Upon entering, youre greeted by a dramatic interior flooded with natural light and impeccably designed for seamless flow. The chefs kitchen anchors the open-concept living area, while the adjoining family room, formal living room, and dining spaces provide gracious spaces for both everyday living and grand entertaining. A versatile private office or bedroom on the main level offers flexibility for a home office or guest suite. The spectacular basement is an entertainers paradise complete with a one-of-a-kind golf simulator, theater, wine cellar/bar, game room, and a guest suite/workout studio. Upstairs, discover four refined en suite bedrooms and a stunning master sanctuary perched to capture majestic views of distant snow-capped peaks. Luxury continues with spa-like baths, fireplaces, and an elevator serving every level for ultimate convenience. Step outdoors into the sun-drenched, south-facing backyard-a lush, grassy oasis perfect for relaxing or hosting.