When noted architect Val Powelson set out to build his personal home in 1954, he drew on his full mastery. The current owners have lived here over 34 years; honoring his vision while sensitively upgrading and expanding it. Nestled in its tree-covered canyon, the ultra-private gated home can't be seen from the street. Within the sweeping main area, Powelson's light-filled approach features floor-to-ceiling windows and a beamed tongue-and-groove ceiling. Green views fill every room, while the back yard enjoys a vista west across the canyon. The open kitchen, part of a 2015 upgrade, is superbly designed and equipped. An earlier, renovation added a seamless second story with family room/library, spacious work areas and bedroom suite. The grounds are glorious, with a patio-circled pool, sunset facing hot tub, and Powelson's boulder-piled waterfall and fish pond. A stunning variety of mature trees and shrubs fills the property, and the gardens display an array of flowering plants and succulents year-round. Cooled by ocean breezes up the canyons, the home is made for entertaining. Runyon Canyon trails are just a walk-up Astral Drive, and both the Valley and the city are nearby. This midcentury romance is ready for its next chapter.