Discover a once-in-a-lifetime opportunity at 10200 Lilac Lane, an architectural and natural masterpiece sprawling across 42 extraordinary acres in the majestic Santa Susana Mountains. This legacy estate offers a lifestyle of unparalleled privacy and grandeur, unfolding like a storybook of secluded trails, cascading seasonal creeks, and ancient sandstone caves. At the heart of this sanctuary sits a 4,067-square-foot mountain-top chateau, meticulously designed to balance timeless elegance with modern luxury. Every room in the home serves as a gallery for unobstructed, panoramic mountain and city views that sweep across the horizon like a living mural of Los Angeles. The residence itself is a testament to light and sophistication, featuring four spacious bedrooms and four bathrooms, with the highlight being a primary suite that is highlighted by a soaring ceiling, sauna, and an enclosed indoor spa with floor-to-ceiling glass walls that make sure you don't miss any shooting stars while relaxing the day away. Whether you are preparing a feast in the gourmet kitchen or gathering in the expansive entertaining rooms, the home's awe-inspiring vistas set the stage for an incredible lifestyle where daily retreats become moments of total rejuvenation. Beyond the chateau, the grounds transform into an outdoor playground for enthusiasts and equestrians alike. The landscape is alive with an oversized Zen koi pond w/fountain, sandstone cave, a separate living area, open-air patio, a breathtaking sunken gathering space with a firepit for evenings under the stars, acres of private walking, hiking, and biking trails meander through ancient oak groves and unique terrain, while equestrian facilities-including dedicated horse stables and riding paths-ensure a world-class environment for your horses. The possibilities for this one-of-a-kind property are truly limitless. Whether you envision a sprawling multi-generational family compound or a private world-class oasis, this estate perfectly harmonizes the rugged, wild beauty of the California landscape with the refined sophistication of a premier architectural icon. This is a rare chance to secure a property that offers your very own mountain top retreat.