Situated in one of Costa Mesa's most desirable neighborhoods, this impressively upgraded pool home offers exceptional space, flexibility, and indoor-outdoor living. Featuring five bedrooms, four bathrooms, a three-car garage, generous front and rear yards, and no HOA, the property is near Newport-Mesa Unified schools, South Coast Plaza, John Wayne Airport, major freeways, and the Orange County coastline. Fresh interior and exterior paint, genuine travertine flooring, real wood floors, quartz countertops, dual-pane windows, recessed lighting, and central HVAC reflect pride of ownership throughout. A formal living room with fireplace welcomes guests, while the rear of the home opens into an expansive great room designed for modern living and entertaining. The upgraded chef's kitchen features a commercial-grade range, butcher block island, oversized walk-in pantry, abundant storage, and seamless flow to the dining area and family room. A dedicated entertaining bar with beverage refrigerator creates the perfect setting for gatherings both large and small. A highly sought-after main-level bedroom and adjacent full bathroom provide flexibility for multigenerational living, extended guests, a private retreat, or future aging-in-place needs. Complete with a walk-in closet and French doors opening to the backyard, the space offers privacy and convenience. Upstairs, the spacious primary suite features a private balcony, two walk-in closets, and an en-suite bath with dual vanities and a jetted soaking tub. Three additional bedrooms provide flexibility for guests, hobbies, fitness, or remote work. One is ideally suited as a home office and complemented by a nearby powder room, while a full bathroom with dual sinks serves the secondary bedrooms. The backyard features a sparkling pool, Baja shelf, spa, mature grapevines, and spaces for entertaining and relaxing. Raised planter boxes in the front yard provide space to cultivate vegetables and herbs. Additional highlights include an indoor laundry room, security camera system, oversized utility sink and extra quarter bath in the direct-access garage, and extensive storage throughout. Costa Mesa remains one of Orange County's most sought-after communities, celebrated for its coastal accessibility, world-class shopping and dining, thriving business centers, and vibrant local culture. 962 Begonia Ave truly offers an elevated lifestyle and the prestige of a coveted Costa Mesa address.