137 15th Street is located in one of Manhattan Beach’s most desirable pockets - just six homes from The Strand in the 100 Block, and steps to Downtown dining, shops, and lifestyle. With a direct westerly ocean view-line, rare backyard space this close to the sand, and exceptional walkability - reflected in a 93 “Walker’s Paradise” rating on Walk Score - this location captures the essence of Manhattan Beach living at a price point seldom seen so near the water. The property offers uncommon flexibility and long-term upside. Set on a 30’ x 45’ lot with an approximate 1,350 square foot developable footprint, it presents a compelling opportunity to live comfortably today while preserving future SFR development potential. Whether used as a primary residence, second “beach house”, or income-producing property, the A+ location supports strong short-term rental demand and makes this an ideal candidate for a thoughtfully executed Airbnb or furnished coastal rental strategy. The existing home is turnkey and fully upgraded. The light-filled upper level features vaulted wood-beam ceilings, heated wood floors, and a welcoming living area centered around a fireplace. The updated kitchen is equipped with premium Miele appliances, pantry storage, and is designed to capture ocean breezes and natural light. Air conditioning adds year-round comfort, enhancing the home’s livability. The layout is efficient and flexible. The upper level functions as a studio or one-bedroom-style living space with a bathroom, while the lower level offers a separate bedroom or office with an adjacent bath - ideal for guests, work-from-home, or additional privacy. Outdoors, a private backyard retreat with fire pit and outdoor shower creates a rare indoor-outdoor living experience this close to the beach. Additional features include a one-car garage with laundry, tankless water heater, and thoughtful upgrades throughout. This is a property that speaks to buyers seeking a foothold in an A+ Manhattan Beach location - whether an empty nester prioritizing walkability and lifestyle, a frequent visitor looking to offset ownership with rental income, or an investor drawn to location-driven demand and future potential. Few offerings combine this level of proximity, flexibility, and long-term value so close to the sand.