Rare Gem in Fountain Valley – Seldom Available Single-Story Stunner! Welcome to 18439 Colville St., an exquisite single-story trophy home located in one of Fountain Valley’s most coveted neighborhoods. This rare, all-on-one-level estate offers 2,409 sq ft of upgraded living space on a generous 8,903 sq ft lot, striking the perfect balance between luxury, comfort, and outdoor enjoyment. Inside, you’ll find four spacious bedrooms, three beautifully remodeled bathrooms, and a three-car garage with a convenient pass-through—perfect for backyard access, extra storage, or weekend projects. The heart of the home is the remodeled kitchen, featuring vaulted ceilings and stylish finishes, designed for effortless flow between everyday living and elegant entertaining. The backyard transforms into a private resort-style oasis, complete with a sparkling pool, inviting spa, built-in BBQ, and three stylish pergolas—including one off the side yard—ideal for relaxing or hosting gatherings. A front yard putting green with low-maintenance astroturf adds a playful and unique touch for golf enthusiasts. Additional highlights include a newer furnace and air conditioning system, custom shutters throughout, and countless thoughtful upgrades that make this home truly move-in ready. From stunning curb appeal to high-end finishes, every inch of this residence has been meticulously updated with care and style.