Located in the highly sought-after American Martyrs neighborhood of Manhattan Beach, 519 14th St. is a beautifully updated, turnkey single-story beach cottage offering timeless coastal charm, effortless indoor-outdoor living, and exceptional future potential. Whether you're seeking a move-in-ready, modern coastal retreat or envisioning a custom dream home with potential ocean views, this property presents a rare opportunity in one of Manhattan Beach's most desirable locations. Set back from the street behind a spacious front yard, the home welcomes you with an inviting front porch and a cheerful yellow Dutch door. Inside, a bright, open-concept living space features a beautiful fireplace and flows seamlessly into the kitchen and generous dining area, with easy access to the side yard and backyard. Quartz countertops, shiplap ceilings, classic wainscoting, recessed lighting, hardwood floors, and abundant natural light create a warm, sophisticated coastal aesthetic throughout. All 4 bedrooms are generously sized, offering ample closet space, and flexibility for a variety of lifestyles. The primary suite features an en-suite bathroom with a walk-in shower, while the 3 additional bedrooms provide options for guests, offices, or a den. A beautiful hallway bathroom with designer tile and countertops is shared. The home's outdoor spaces are inviting. The private backyard is a peaceful retreat, perfect for relaxing and entertaining, with beautiful slate pavers, a gas fire pit, and plenty of room for outdoor dining and gatherings. A hot-water outdoor shower adds a quintessential beach touch, while the spacious front yard and private side yard provide additional areas to enjoy the Southern California lifestyle. Additional amenities include forced-air heating, air conditioning, and a two-car garage featuring a newer washer and dryer, a rear access door opening directly to the private side yard, and additional driveway parking. Ideally located just up the street from the Manhattan Beach Greenbelt and within walking distance of downtown Manhattan Beach's acclaimed restaurants, boutiques, and beaches, this home offers an exceptional combination of neighborhood charm, privacy, and coastal convenience. Whether enjoyed as a beautifully updated beach cottage, held as an investment, or reimagined as a future custom residence with potential ocean views, 519 14th Street offers an extraordinary opportunity to embrace the best of Manhattan Beach living.