The Peninsula Open Space Trust purchased over 2,000 acres of Sargent Ranch.

The Peninsula Open Space Trust has purchased 2,284 acres of Sargent Ranch near the southern border of Santa Clara County along Highway 101, marking the largest land deal in the 49-year-old nonprofit’s history. The $23 million acquisition is the latest of three properties the trust has secured in its overarching goal to permanently conserve the entire 6,500-acre ranch that was once slated for commercial development as a quarry. It’s also one of the largest pieces of undeveloped private property in the South Bay.

“POST and our partners are on our way to achieving a long-sought milestone,” president Gordon Clark wrote in a Thursday statement on the trust’s website, revealing the nonprofit has acquired 6,114 acres of the sweeping property to date. “The remaining 480 acres are under contract and we expect to conserve them in late 2026.”

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