Welcome to 18186 Santa Joanana, a beautifully upgraded residence in the highly sought-after Greenbrook community of Fountain Valley. This expansive SPACEMAKER 2 home offers 5 bedrooms, 4 bathrooms, a large bonus room, and an open loft, with one primary bedroom conveniently located on each floor—perfect for multigenerational living or hosting overnight guests. With 3,445 square feet of thoughtfully designed interior space on a generous 6,120 square foot lot, this home is built for comfort, functionality, and unforgettable gatherings. As you step through the new solid wood front door, you're greeted by a bright, open-concept layout. A past remodel transformed the main level by leveling the former sunken living room with concrete and removing select walls, resulting in a spacious, cohesive great room ideal for everyday living and entertaining. The downstairs features newer laminate flooring, creating a seamless flow throughout the expansive floorplan. The architect-designed and fully remodeled kitchen is a true showpiece, boasting custom cabinetry, Cambria quartz countertops, a large island, imported porcelain sink, coffee bar, newer SS KitchenAid appliances, beverage fridge, and elegant pendant lighting. Natural light floods the home through well-placed skylights and a newly added kitchen sliding door, enhancing the warm and airy atmosphere throughout. Upstairs, the large private bonus room offers incredible flexibility and potential for future remodeling—whether you're envisioning a home theater, gym, or an additional bedroom suite, this space is ready to adapt to your needs. Comfort meets peace of mind with a central air and upgraded HVAC system. The home also includes a new electrical panel and all-new lighting throughout. Step outside to your private backyard retreatwith an inviting pool and hot tub, a built-in barbecue, and a cozy in-ground gas fireplace. Whether you're hosting pool parties, BBQs, or cozy evenings outdoors, this space is ready for every occasion. Attached two-car garage offers added convenience and storage.Tucked away in a quiet neighborhood within the Greenbrook HOA down the street from the community clubhouse and pool, this home also boasts a prime location just minutes from top-rated schools, shopping, dining, parks, and major freeways—making daily commutes and weekend outings incredibly convenient. 18186 Santa Joanana is not just a home, it’s a lifestyle upgrade in one of Fountain Valley’s most desirable communities.