Rancho San Lucas
Also known as: Trescony Ranch
Why it's listed
Rancho San Lucas is the headquarters of a working cattle and farming ranch on the west side of the Salinas Valley, southwest of San Lucas in Monterey County. Alberto Trescony, an Italian immigrant stockman, bought the rancho in 1862 and built an adobe ranch house, barn and blacksmith shop in 1865. An adobe bunkhouse and grainery followed in 1888, along with wood-frame stock barns and a small wooden grainery. The ranch house was designed by his wife, Catherine Trescony, and built with local sandstone foundations and a wine cellar. The adobe barn has three aisles and a transverse plan, reported as the only one of its kind in the county. The buildings form a hollow square around an entry road, set in an arroyo among oak-covered hills. Roofs were changed to mission tile in the 1960s, and additions were made to the house through 1973, but the district keeps its overall character. It is listed for its link to Trescony's role in the county's farming economy.
Significance in brief: The nomination argues the complex is a cohesive ranch headquarters with a strong sense of time and place, built for Alberto Trescony, an Italian immigrant stockman whose ranching and land dealings shaped Monterey County agriculture. It also includes an unusual three-aisle transverse adobe barn, described as the only one of its kind in Monterey County and perhaps the state. The form marks local significance.
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 91000530, listed May 6, 1991. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | 1 3/4 mi. SW of jct. of Paris Valley Rd. and Rancho San Lucas entry rd., San Lucas |
|---|---|
| County | Monterey County |
| Listed | May 6, 1991 |
| Reference number | 91000530 |
| Resource type | District |
| Period of significance | 1865-1888 |
| Architect / builder | Ranch house designed by Catherine Trescony; work executed by Italian and Indian laborers |
| Architectural style | No Style (Other: Transverse Adobe Barn) |
| Criteria |
|
| Areas of significance | Agriculture |
| Level of significance | Local |
| Status (as stated in the nomination) | Working ranch; the blacksmith shop is still in active use. The wooden grainery is in poor condition and the transverse stock barn is described as the least stable. |
| Acreage | 252 |
| Coordinates | 36.04275, -121.00840 (NPS GIS) |
What listing means for this property
This is a historic district. Buildings within its boundary are either contributing (they add to the district's significance) or non-contributing. Owners of contributing income-producing buildings can claim the 20% federal rehabilitation tax credit; homeowners should look at state credits. National Register districts impose no design review by themselves; a local historic district ordinance, if one exists, does (the difference explained).
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 91000530.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q7291266
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.