The Newhall Mansion (1886-1984) Historical Landmark No. 4 : Nestled at the base of idyllic Lake Piru, an hour or less from Los Angeles, the property (originally known as the Cook Mansion) is a blend of Western California heritage and Victorian luxury dating back to the citrus empires that ruled the land at the beginning of the 20th century. Set on 10 acres of lush, manicured grounds with breathtaking mountain vistas, the current 11,500sf estate features 10 bedrooms and 12 bathrooms, custom-milled floors, stained-glass, and 8 fireplaces. As a meticulously maintained Ventura County historical landmark, the Newhall Mansion has long been a coveted location for film & TV, including The X-