{"nrhp_refnum":"76000494","name":"Hubble, Edwin, House","other_names":["Edwin Powell Hubble House"],"category":"building","location":{"address":"1340 Woodstock Rd.","address_restricted":false,"city":"San Marino","county":"Los Angeles County","state":"CA","lat":34.123210045000036,"lon":-118.12073544401548,"geom_source":"nps_gis"},"listed_date":"1976-12-08","is_nhl":true,"nhl_designated_date":"1976-12-08","areas_of_significance":["Science"],"significance_levels":["national"],"summary":{"what_it_is":"A two-story stucco single-family residence at 1340 Woodstock Road in San Marino, Los Angeles County, California, built in 1925 to designs by architect Joseph Kucera.","why_significant":"The house was the home of astronomer Edwin Powell Hubble from 1925 until his death in 1953. Hubble proved that the universe contains countless galaxies beyond the Milky Way, devised a classification system for them, and showed that they are receding from one another. The nomination argues the house is significant for its association with him, not for its architecture.","narrative":"This two-story stucco house at 1340 Woodstock Road in San Marino, California, was built in 1925 and designed by Joseph Kucera, who drew many residential plans in the Los Angeles area. It is described as a good example of the 1920s California Mission Style, though not of national architectural importance. The first floor holds an entry hall, living room, dining room, library, kitchen, maid's room and bath, with two bedrooms and a bath upstairs. It was the home of astronomer Edwin Powell Hubble from 1925 until his death in 1953, and it stayed in the family until about 1973. Working at the Mount Wilson and Palomar observatories, Hubble showed that the Milky Way is only one of countless galaxies, created a classification scheme for them known as the tuning fork, and demonstrated that galaxies are moving apart, a finding tied to Hubble's constant. The house remains unaltered, well maintained and in use as a private residence.","period_of_significance":"1925-1953","architect_builder":"Joseph Kucera","architectural_style":"California Mission Style (1920s)","criteria":[],"status_note":"Occupied and used as a single-family residence; described as very well maintained, with no alterations since the Hubble period and full integrity.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:31.639265-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/76000494_NHL.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/76000494/8acb7078cb-800.webp","url_1600":"https://nationalhistoricalregister.com/media/76000494/8acb7078cb-1600.webp","licence":"Public domain","author":"National Park Service photographer","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Edwin_Powell_Hubble_House,_San_Marino_(Los_Angeles_County,_California).jpg\" rel=\"noopener\">National Park Service photographer</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Edwin_Powell_Hubble_House,_San_Marino_(Los_Angeles_County,_California).jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123857928","wikipedia":"https://en.wikipedia.org/wiki/Edwin_Hubble_House","wikidata":"https://www.wikidata.org/wiki/Q5346529"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/los-angeles-county/hubble-edwin-house-76000494/"}