Pacific-Union Club, Social club in Nob Hill, San Francisco, United States
The Pacific-Union Club occupies an 1886 mansion at California and Mason Streets on Nob Hill, built with Connecticut brownstone in classical revival style. The structure takes up an entire city block, with the main entrance facing California Street and extending between Cushman and Sacramento Streets.
Built in 1886 for silver magnate James C. Flood, this mansion is the sole structure on Nob Hill that survived the 1906 earthquake and fire. Its survival through that catastrophe made it a symbol of resilience during San Francisco's reconstruction after the disaster.
This club has shaped how San Francisco's established families and business leaders connect and maintain their social circles over generations. Visitors walking past notice how carefully the building is maintained and how it anchors one of the city's most prominent neighborhoods.
The club sits at a central location on Nob Hill, easily reached on foot from most parts of the city. Visitors can view the exterior from the sidewalk, and the corner location provides good sightlines from multiple streets.
This was the first brownstone mansion built west of the Mississippi River, recognized as a National Historic Landmark in 1966. The designation honors both its architectural innovation and its role as a survivor of San Francisco's transformative history.
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