{"nrhp_refnum":"85003189","name":"Lantarnam Hall","other_names":["Ford Country Day School"],"category":"building","location":{"address":"12355 Stonebrook Dr.","address_restricted":false,"city":"Los Altos Hills","county":"Santa Clara County","state":"CA","lat":37.356632975000025,"lon":-122.12304361799994,"geom_source":"nps_gis"},"listed_date":"1985-12-19","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"Lantarnam Hall is a two-and-a-half-story, L-shaped Tudor Revival manor house at 12355 Stonebrook Drive in Los Altos Hills, Santa Clara County, California. It was built from 1914 to 1916 as the Percy T. Morgan estate and now houses the Ford Country Day School.","why_significant":"The nomination calls it one of the best examples of Jacobean/Tudor Revival architecture on the San Francisco Peninsula, modeled on England's Speke Hall (c. 1589). It also has historical significance through its association with original owner Percy T. Morgan, a Bay Area financier. European architectural fragments and art are integrated into the house.","narrative":"Lantarnam Hall is a large Tudor Revival manor house in Los Altos Hills, built between 1914 and 1916 for financier Percy T. Morgan. Architect John H. Powers modeled the L-shaped, half-timbered house on Speke Hall, a Lancashire house of about 1589, blending Tudor, Elizabethan and Jacobean details. The house has about 11,000 square feet and 26 major rooms and spaces. Inside, Morgan's family incorporated European fragments, including a Great Hall ceiling from a Venetian palace, a Dutch balcony railing and old stained glass. The original 132-acre estate has shrunk to seven acres through subdivision. Morgan died in 1920, and after years of abandonment the house passed through several owners. In 1952 it became the Ford Country Day School, which still uses it. It was listed for its architectural quality and its link to Morgan, a director of the Union Trust Company and Wells Fargo Bank.","period_of_significance":"1916","architect_builder":"John H. Powers","architectural_style":"Tudor Revival / Jacobean / Elizabethan (\"Jacobethan\" Revival)","criteria":["B","C"],"status_note":"Occupied and used as a school; the structure is sound, though the form says it needs repair and conservation.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:27.286537-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/85003189.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123861720","wikipedia":"https://en.wikipedia.org/wiki/Lantarnam_Hall","wikidata":"https://www.wikidata.org/wiki/Q55757597"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/santa-clara-county/lantarnam-hall-85003189/"}