Hagemann Ranch Historic District

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Hagemann Ranch Historic District is a 19th‑century farm in Livermore, California. The district covers about 4.6 acres and centers on a farmhouse built in 1870, plus eleven outbuildings that contribute to its history.

Owned by the Livermore Heritage Guild, it is open to the public about once a month.

The district was added to the National Register of Historic Places and designated a California Historical Landmark on January 10, 2008.

Location: about 1.5 miles west of downtown Livermore, near Hagemann Park, in an area now filled with houses.

History: It was one of the first ranches started after the 1869 breakup of Rancho Valle de San José. From 1870 to 1962, it operated as a working farm with cattle, horses, wheat, hay, orchards and vines.

Contributing buildings include the farmhouse plus:
- Two chicken coops
- Cow barn
- Milk barn
- Horse barn
- Blacksmith shop
- Granary
- Garage
- Equipment shed
- Pump house with windmill

In the 1950s, much of the surrounding farmland became housing for workers at the Lawrence Livermore Laboratory (now LLNL). The district is next to Hagemann Park.