Rozas House

San Juan Bautista, San Benito County, California Listed Ref. 82002243 Building
Rozas House, San Juan Bautista, California
Photo: Eugene Zelenko, CC BY-SA 4.0, via Wikimedia Commons
Open in OpenStreetMap

Why it's listed

Six rooms in a long, L-shaped wood frame building line Polk Street in San Juan Bautista, California. Probably built in 1856 by a Chilean merchant named Samit, it is an early example of board-on-end construction without wall studs. Each room opens by its own door onto the street and onto a rear porch, a plan that appears to derive from a common mid-nineteenth century California vernacular form of rooms facing a courtyard, here executed in wood rather than adobe. The nomination considers it the oldest wood frame structure in a town known for its adobe landmarks. Ambrosio Rozas, Sr. bought the house soon after it was built for his son, Ambrosio Rozas, Jr. His wife, Emelda Lugo Rozas, granddaughter of Los Angeles alcalde Antonio Maria Lugo, lived there until 1950, a total of 75 years. Original room divisions, doors, trim, and roof framing survive, though the porches were added later.

Significance in brief: The nomination argues it is a rare wood frame structure from the early American period in a town of mostly adobe landmarks, and is considered the oldest wood frame structure in San Juan Bautista. It is also tied to the settlement and continuing occupation of the town by old Hispanic California families. Its plan adapts a common mid-nineteenth century California vernacular form of street-facing units to wood frame construction, which is described as quite unusual.

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 82002243, listed April 12, 1982. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).

Key facts

Address31 Polk St., San Juan Bautista
CountySan Benito County
ListedApril 12, 1982
Reference number82002243
Resource typeBuilding
Period of significance1800-1899
Architect / builderSammit (attributed)
Areas of significanceExploration/Settlement, Architecture
Level of significanceLocal
Status (as stated in the nomination)Occupied as a private residence; condition is marked deteriorated and altered, on its original site.
Acreage0.9
Coordinates36.84475, -121.53899 (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

Last updated October 2026. Found an error? See the editorial policy for how to report it.