Casa de Estudillo

Estudillo House
Main entrance
Location4000 Mason Street,
San Diego, California
Coordinates32°45′14.32″N 117°11′44.81″W / 32.7539778°N 117.1957806°W / 32.7539778; -117.1957806
Built1827
Architectural styleSpanish Colonial
NRHP reference No.70000143
CHISL No.53
SDHL No.14A
Significant dates
Added to NRHPApril 15, 1970
Designated NHLApril 15, 1970
Designated CHISL1932
Designated SDHLNovember 6, 1970

The Casa de Estudillo, also known as the Estudillo House, is a historic adobe house in San Diego, California, United States. It was constructed in 1827 by José María Estudillo and his son José Antonio Estudillo, early settlers of San Diego and members of the prominent Estudillo family of California, and was considered one of the finest houses in Mexican California. It is located in Old Town San Diego State Historic Park, and is designated as both a National and a California Historical Landmark in its own right.

Besides being one of the oldest surviving examples of Spanish architecture in California, the house gained much prominence by association with Helen Hunt Jackson's wildly popular 1884 novel Ramona. The Casa de Estudillo is one of three National Historic Landmarks in Southern California that were closely tied to Ramona, a novel of Californio life shortly after the American acquisition of California; the other two are Rancho Camulos and Rancho Guajome.