Shafter Research Station
Also known as: Kern County Experimental Station

Why it's listed
Shafter Research Station is a cotton research farm near Shafter in Kern County, California. The nominated district covers about 17.5 acres of the 77-acre site. It contains the earliest buildings, including an adobe administration and fiber laboratory and a Craftsman-style superintendent's house, both built in 1922. Also included are an adobe seed storage laboratory, a 1930s greenhouse, a 1937 cotton gin building, later sheds and shops, and about eight acres of experimental cotton fields. The station began after a federal agronomist's cotton variety tests across the Southwest pointed to the San Joaquin Valley. Kern County land was leased and later bought by the county for the U.S. Department of Agriculture. Breeding and testing there led to the "One Variety" approach built around Acala cotton. California's One Variety Cotton Act followed in 1925. The station is recognized for this role in the state's cotton industry, and its seed and production research has drawn visitors and students from other cotton-growing countries. The period of significance runs from 1922 to 1947.
Significance in brief: The station is significant for its leading role in developing California's cotton industry. The "One Variety" concept of growing Acala cotton was conceived there, and it led to the 1925 California One Variety Cotton Act. The station is also known worldwide for cotton research and seed supply.
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 97001211, listed October 17, 1997. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence high).
Key facts
| Address | 17053 Shafter Ave., Shafter |
|---|---|
| County | Kern County |
| Listed | October 17, 1997 |
| Reference number | 97001211 |
| Resource type | District |
| Period of significance | 1922-1947 |
| Architectural style | Mission/Spanish Colonial Revival; Bungalow/Craftsman; No Style |
| Criteria |
|
| Areas of significance | Agriculture, Science |
| Level of significance | State |
| Status (as stated in the nomination) | Most buildings are used for storage or farm work and the station remains a working research farm. The Laboratory and Cotton Seed Storage building is abandoned and in bad repair, while the Administration/Fiber Lab building is in good repair. |
| Acreage | 17.5 |
| Coordinates | 35.53091, -119.27906 (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 97001211.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q14683952
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.