266 Joann Street THE PINNACLE OF COSTA MESA LUXURY. In a market of predictable tract homes, this custom 5BR/4BA Mediterranean estate arises as a profound architectural statement. From the moment you arrive, the commanding stone-clad turret entry commands your attention, delivering exceptional curb appeal. Wrapped in a smooth stucco exterior w/extensive stacked-stone accents, this residence is engineered for the peak of modern California living. Cross the threshold into a world of breathless scale. Rare, high-end Venetian plaster walls catch the light with a custom luxurious finish. Soaring vaulted ceilings elevate the open-concept layout, where rich hardwood flooring beautifully complements expansive, large-marble tile. Every view is framed by custom wood-framed windows and doors, while the fireplace warms the main living area. Oversized sliding glass doors dissolve the boundary between indoors & your private backyard oasis. The culinary center is a stage of professional-grade power, featuring custom cabinetry, a walk-in pantry, a massive center island, & elite appliances: a Thor 48-inch range, matching Thor vent hood, Thor dishwasher, & Whirlpool refrigerator. VERSATILITY & EFFICIENCY: Discovered within the architecture is a private mother-in-law suite with an ensuite overlooking the pool, featuring its own separate exterior entrance—ideal for multigenerational living or an elite home office. Also located on the main level is a spacious secondary bedroom adjacent to a richly appointed full bathroom. Upstairs, there are 3 more bedrooms, with the master boasting a luxurious master bath with a whirlpool soaking tub, dual vanities, and a separate shower. Dual-zone HVAC systems serve separate levels for year-round energy efficiency, while an attached 2-car garage boasts an oversized driveway. Outside lies a private resort surrounded by mature landscaping. Seamlessly host grand gatherings with a shimmering swimming pool, an expansive stone patio, and a large covered pavilion. The custom outdoor kitchen features extensive stonework, granite countertops, a built-in BBQ, sink, fridge, and storage. This home is tucked away yet centrally located; you are minutes from the best of Orange County. Minutes to Triangle Square & the 17th Street dining corridor. Enjoy access to Lido Marina Village, Newport Harbor boating, Balboa Peninsula beaches, South Coast Plaza, The CAMP/LAB, premier country clubs, major freeways (405/55/73), & John Wayne Airport. This is resort living at its finest.