Steeped in Northern California history, this nine-acre creekside estate sits in the heart of the Alexander Valley in the Sonoma County town of Cloverdale, about 80 miles north of San Francisco. The property was originally home to an early 1900s steam-generating power plant that serviced three towns as well as the historic Italian Swiss Colony winery, now owned and operated by the E. & J. Gallo Winery. In 1946, the abandoned plant caught the eye of Arthur Foster, a Bay Area banker and heir to the Northwestern Pacific Railroad family, who converted it into a private residence he aptly named the Power House.
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Decades later, San Francisco landscape architect Todd Cole purchased the L-shaped concrete structure. With the help of interior designer Myra Hoefer, he transformed it into a French Country-inspired weekend home. Cole kept the dwelling largely intact while creating grounds framed with manicured boxwoods, ancient olive trees, and gravel pathways…