{"nrhp_refnum":"87000005","name":"Knipp and Stengel Ranch Barn","other_names":["Sea Ranch Stables"],"category":"building","location":{"address":"CA 1","address_restricted":false,"city":"Sea Ranch","county":"Sonoma County","state":"CA","lat":38.71580092900007,"lon":-123.45580441799996,"geom_source":"nps_gis"},"listed_date":"1987-01-29","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Agriculture","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A large three-aisled wood-frame ranch barn, built in the 1880s, on a 4.38-acre knoll beside State Route One at Sea Ranch, Sonoma County, California, with a hay barn, scale house and equipment building.","why_significant":"It is the major surviving structure of the Knipp and Stengel Ranch, a cattle ranch of nearly 5,000 acres on the northern Sonoma County coast. It is a notable example of mortise and tenon construction, built from timbers salvaged from an earlier barn, and is one of the largest barns in the county. Its simple utilitarian design also inspired the architecture of the Sea Ranch community.","narrative":"Perched on a knoll beside State Route One at Sea Ranch, this large redwood barn was built in the 1880s as the central building of the Knipp and Stengel Ranch, a cattle operation that grew to 4,819 acres. Its three-aisled plan, roughly 8,400 square feet, resembles northern European barns, and about 20 percent of the framing is reused hand-hewn timber joined with pegged mortise and tenons. Over time the barn served cattle, then dairy cows, then sheep in the 1920s, and after 1964 it became a horse stable when the Sea Ranch second-home community was developed. A hay barn, scale house and equipment building from the 1880s to late 1920s stand nearby. Together they are the last remnant of the ranch headquarters. The plain, utilitarian design of these buildings became a model for the architecture of Sea Ranch itself, linking the community to its agricultural past.","period_of_significance":"1880s to 1920s","architect_builder":"Unknown","architectural_style":null,"criteria":[],"status_note":"Described as in good condition with only minor alterations. It is used as an equestrian center, though horses have not been boarded inside for about five years and many stalls hold storage. The collapsed machine shop was removed in 1986.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:27.693022-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/87000005.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/87000005/3e1b5ed0a5-800.webp","url_1600":"https://nationalhistoricalregister.com/media/87000005/3e1b5ed0a5-1600.webp","licence":"CC BY-SA 3.0","author":"Sanfranman59","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Knipp_and_Stengel_Ranch_Barn,_CA_1,_Sea_Ranch,_CA_7-5-2010_7-25-07_PM.JPG\" rel=\"noopener\">Sanfranman59</a>, <a href=\"https://creativecommons.org/licenses/by-sa/3.0\" rel=\"license noopener\">CC BY-SA 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Knipp_and_Stengel_Ranch_Barn,_CA_1,_Sea_Ranch,_CA_7-5-2010_7-25-07_PM.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123862088","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q133554653"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/sonoma-county/knipp-and-stengel-ranch-barn-87000005/"}