Behind private gates in the coveted enclave of Cowan Heights, this landmark estate--enhanced by over $1,000,000 of major renovations completed from 2023-2025 (see amenity sheet suplement). This home offers exceptional privacy, prestige, and sweeping panoramic views from nearly every room. Toughtfully reimagined with elevated finishes, modernized systems, and smart-home technology, it is ideally positioned in the Linda Vista Estates--an exclusive gated community of only 15 custom homes--showcasing dramatic city lights, Catalina horizons, and unforgettable sunset skies. Spanning 6,544 square feet on a one-acre lot, the home blends timeless architecture with refined luxury, introduced by grand entry doors, soaring ceilings, polished travertine floors, and expansive walls of glass that frame the views and set the tone for elevated yet comfortable living. Major upgrades include a redesigned chef's kitchen with Sub-Zero and Wolf appliances, expansive quartz counters and floor to ceiling cabinets, fully renovated baths with a Toto Neorest, extensive lighting and electrical enhancements, and a renovated five-car garage with terrazzo flooring. The main level is perfectly suited for entertaining and everyday life, featuring a formal living room oriented to the skyline, a welcoming dining room ideal for intimate dinners or larger occasions, a chef's kitchen with casual dining, and a spacious great room complete with fireplace and entertainer's bar. The primary suite is a true retreat with its own fireplace, spa-inspired bath, custom walk-in closet, and doors opening to the main viewing balcony for seamless indoor-outdoor living. An elevator and dual staircases lead to the lower level, offering a large bonus room, secondary bar area, two additional bedrooms and 2.5 bathrooms, plus an oversized 5-car garage with lift and an additional bath--ideal for collectors and enthusiasts. Upstairs, an additional en-suite bedroom and beautifully situated office loft deliver inspiring, elevated views across Orange County. Outdoors, enjoy year-round sunsets and open-air living on an expansive wraparound deck and observation lookout capturing the full sweep of the coastline and beyond. A rare offering in one of Orange County's most prestigious hillside neighborhoods--served by award-winning Tustin schools--this is a home that must be experienced to fully appreciate its scale, setting, and significance. Redisigned for efficiency and has low operating and maintenance costs comparatively.