50s Charm, Prime Location, and a Backyard Designed for Entertaining. This 3-bedroom, 2-bath home rests on a sprawling 8,000+ sq. ft. lot on the coveted 300 block of Walnut-a desirable non-arterial street. With a rare 60-foot-wide frontage and 133-foot depth, this property offers space, privacy, and limitless potential. The huge backyard is an entertainer's dream, featuring a sparkling pool with a Baja shelf, a spa with a cascading waterfall, a natural gas fire pit, and a built-in bar complete with a sink, mini fridge, BBQ space, and ample seating. The entire backyard was renovated in 2019, including pool refinishing, updated Wi-Fi-connected equipment, and thoughtful design upgrades.  Raised planter boxes, along with mature avocado, tangerine, and orange trees, add lush greenery and the joy of homegrown fruit. The spacious yard is perfect for hosting unforgettable summer gatherings or relaxing evenings by the fire pit. Inside, the home exudes mid-century charm blended with modern comfort. Vaulted ceilings with exposed beams run throughout the living areas and bedrooms, creating an open and airy atmosphere. Luxury vinyl plank flooring flows through the main living spaces, while the living room centers around a wood-burning fireplace with a custom mantel-ideal for cozy nights at home.  The kitchen is a delightful nod to the past, featuring a vintage Western-Holly oven straight out of a 1950s Good Housekeeping magazine, complemented by tile countertops, a Whirlpool dishwasher, and a Samsung refrigerator and washing machine for modern convenience.  Practical upgrades include a partial roof replacement in 2015, hydro-jetted plumbing with new sewage cleanouts installed in 2023, and a main sewer line that drains to the alley. Owned solar panels provide efficient pool heating for year-round enjoyment. With rear alley access, the garage is conveniently located at the back of the home, allowing easy pull-in from the alley-a perfect setup for bike rides and outdoor adventures. This smart design maximizes usable space in the front yard, creating an open, inviting entry free of a front-facing driveway or garage.  Located just blocks from Woodland and Kaiser Elementary Schools, the Back Bay, Mariners Park, the 17th Street Promenade and Triangle Square, with coastal beaches just a short bike ride away.  This home's unbeatable location, timeless charm, and resort-style backyard make every day a memory in the making. Don't miss this one-of-a-kind Eastside Costa Mesa gem!