An Exceptional Altadena Opportunity - Build Your Dream Estate. Privately nestled high in the Altadena foothills, this rare and extraordinary parcel offers a once-in-a-lifetime opportunity to create a custom estate on a truly remarkable piece of land. Set at the end of a peaceful cul-de-sac, this expansive 40,060 SQ. FT. flat and usable lot already features a tennis court and pool--an ideal foundation for a luxurious California lifestyle. Enjoy unparalleled privacy and sweeping views of the San Gabriel Mountains, serene skyline, and breathtaking sunsets. Surrounded by mature trees and natural beauty, the setting is both tranquil and inspiring--perfect for a sprawling architectural masterpiece, lush gardens, or the ultimate entertainer's retreat. Whether you dream of a modern showpiece, a classic Spanish Revival, or a warm and inviting ranch-style estate, this prime Altadena location offers limitless potential in a coveted, convenient neighborhood that feels worlds away. Opportunities where privacy, natural beauty, and visionary possibilities align are exceedingly rare. Property sold as-is. The property has been opted in for Phase 2 Debris Removal with the US Army Corps of Engineers of Engineers and is scheduled to be cleared soon. A previous 5-bedroom, 4-bathroom Mid-Century Modern home once stood here, totaling approximately 5,200 SQ. FT. (assessor records show 4,162 SQ. FT.). Cash offers only.