Set on a rare oversized 8,448 sq. ft. lot at the end of a quiet cul-de-sac, 2042 Aliso Avenue is a true hidden gem in one of Costa Mesa’s most coveted neighborhoods. Thoughtfully designed and extensively upgraded, this residence offers the perfect blend of privacy, versatility, and a lifestyle that embraces both indoor comfort and resort-style outdoor living. The heart of the home is the professionally designed backyard, created by Chelsea Corinne Studio and built by Instant Landscape Construction. Anchored by a brand-new pool with Pentair equipment, a waterfall feature, and Sandrine Scott hard finishes, the outdoor space is truly one-of-a-kind. Enjoy the covered California room, complete with Infratech heaters, gas and electric BBQ hookups, an al fresco dining terrace, a sports court featuring a Goliath basketball hoop, and an outdoor sauna. Pre-plumbing is also in place for a future outdoor shower. Every detail has been designed for effortless entertaining, wellness, and year-round enjoyment. Inside, the updated kitchen is both modern and functional, showcasing custom cabinetry by JC Millwork Design with Blum Movento soft-close hardware, Thermador appliances, engineered European oak floors, a water filtration system, and sleek porcelain countertops. Upstairs, the expansive suite—currently enjoyed as a kids’ lounge with vaulted tongue-and-groove ceilings and a 3/4 bath—offers the potential to become a stunning primary retreat. Additional upgrades include a Sonos sound system both inside and out, new fiber-cement siding with fresh paint, an HVAC system featuring UV light air filtration, updated recessed lighting throughout, and two outdoor storage sheds totaling approximately 100 sq. ft. of bonus space. A detached rumpus room provides even more flexibility—perfect for a home office, gym, or creative studio. Beyond the property, residents appreciate the quiet, friendly street, where all can play safely thanks to its limited access and added privacy. Additionally, it's just minutes from Newport’s beaches, the shops and dining of 17th Street, top-rated schools, and vibrant community amenities. This is more than a home—it’s a lifestyle retreat in the heart of Costa Mesa. Welcome yourself home to 2042 Aliso Avenue!