A rare opportunity to own two attached residences- a luxurious main house and a private ADU guest house- perfectly situated in the heart of Fountain Valley, just steps from Mile Square Park and within a top-rated 10/10 school district. This breathtaking brand-new custom-built estate showcases exceptional craftsmanship, timeless elegance, and the finest high-end materials throughout. Boasting 6 bedrooms, 6.5 bathrooms, plus a private office, this stunning property was thoughtfully designed by a talented designer with an extraordinary eye for detail and aesthetics. Every element has been meticulously curated, from the grand chandeliers and custom window treatments to the exquisite wood moldings adorning the walls throughout the home. The sophisticated interior features premium designer wallpaper, luxurious tile selections, and top-of-the-line appliances, creating an atmosphere of refined living and unmatched quality. An elegant bar area provides the perfect space for entertaining, while the fully paid-off solar system offers modern efficiency and long-term value. Every detail-from the color palette and textures to the finishes and fixtures-reflects an uncompromising commitment to luxury and design. This is truly a must-see property to fully appreciate the extraordinary craftsmanship, beauty, and upscale lifestyle it offers.