Estudillo House
Why it's listed
Built between 1827 and 1829 for Don Jose Antonio Estudillo, a captain in the San Diego presidio garrison, this one-story adobe house wraps around three sides of a courtyard on the east side of the Old Town plaza. Its plastered walls average three feet thick, and the shed-type tile roof rests on hand-hewn timbers lashed with rawhide. All rooms open onto a veranda facing the patio. Estudillo, who later served as mayor and justice of the peace, was wealthy, and his house was ranked among the finest in Mexican California. A large hall served as the town chapel and school from the early 1830s until 1856, and women and children took shelter there in times of conflict. The family lived there until 1887, after which the house fell into ruin. John D. Spreckels financed a 1910 restoration, and the State of California carried out another in 1968-69. Much of the present fabric is rebuilt, and the house now operates as a museum.
Significance in brief: The house is presented as a typical large Spanish-Mexican one-story town house, considered in its day one of the finest in Mexican California. It served the community as a chapel and school and as a refuge in times of revolution and war. It has been largely rebuilt through restorations in 1910 and 1968-69.
Machine-generated summary. This summary was generated by a language model from the official nomination document and has not been reviewed line by line by an editor. It may contain errors. Check the source document before relying on any detail. Source: nomination document (PDF) · National Archives catalog entry. NRHP reference 70000143, listed April 15, 1970. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | 4000 Mason St., San Diego |
|---|---|
| County | San Diego County |
| Listed | April 15, 1970 |
| Reference number | 70000143 |
| Resource type | Building |
| Period of significance | 1827-29 |
| Architect / builder | Restoration architects Hazel Waterman (1910) and Clyde Trudell (1968-69); original builder not named |
| Architectural style | Spanish-Mexican one-story adobe town house |
| Areas of significance | Architecture |
| Level of significance | National |
| National Historic Landmark | Yes, designated April 15, 1970 |
| Status (as stated in the nomination) | Owned by the State of California Department of Parks and Recreation, occupied, in good condition, altered and reconstructed, and used as a museum within Old Town State Historic Park. |
| Acreage | 1 |
| Coordinates | 33.78098, -116.96811 (NPS GIS) |
What listing means for this property
National Register listing is honorary for a privately owned home: it does not by itself restrict what an owner may do with their own money, and it does not require public access. Restrictions come from local landmark or historic-district ordinances, which are separate (how they differ).
Owner-occupied houses are not eligible for the 20% federal rehabilitation tax credit, which applies to income-producing buildings, but many states offer credits for homeowners. Listing also opens the door to preservation easements and to buying a plaque. Start with what listing means for homeowners, renovating a listed house and selling one.
General information, not legal or tax advice. Rules change; confirm with your State Historic Preservation Office or a qualified adviser.
Sources and further reading
- National Park Service, National Register of Historic Places database (snapshot May 2026), reference 70000143.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q782631
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.