A truly rare offering in prestigious Amestoy Estates, this sprawling 1.5-acre ALL-FLAT corner lot presents one of the most exceptional development opportunities currently available in Encino. Surrounded by some of the area's most distinguished multi-million-dollar estates, this property offers endless possibilities for developers, investors, builders, and end-users seeking to create a legacy estate. The existing residence features a flexible floor plan with a first-floor bedroom and three spacious upstairs bedrooms overlooking the expansive park-like grounds. In addition, the property includes a substantial detached 1,620-square-foot guest house with soaring ceilings, a private entrance, and tremendous potential for extended family, guests, a home office, wellness retreat, or income-producing opportunities. What truly sets this property apart are the included plans for an approximately 28,000-square-foot luxury estate, offering buyers a significant head start toward creating a world-class custom residence. Buyers are advised to verify all plans, permits, development opportunities, and the potential for lot subdivision with the appropriate professionals and governmental agencies. Whether your vision is a private family compound, a multi-generational estate, multiple luxury residences, or an unparalleled resort-style retreat complete with expansive outdoor amenities, sports courts, guest accommodations, and entertainment spaces, the possibilities are virtually limitless. The property's flat topography, enormous frontage, and premier location provide an extraordinary canvas to bring your dream project to life. Ideally situated within walking distance to Ventura Boulevard's renowned dining, shopping, and entertainment, this is a once-in-a-generation opportunity to acquire one of Encino's most versatile and valuable development sites.