{"nrhp_refnum":"98000959","name":"House at 1011 S. Madison Ave.","other_names":[],"category":"building","location":{"address":"1011 S. Madison Ave.","address_restricted":false,"city":"Pasadena","county":"Los Angeles County","state":"CA","lat":34.12893012500007,"lon":-118.13827780599996,"geom_source":"nps_gis"},"listed_date":"1998-08-06","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A two-story single-family house with a garage and a storage shed at 1011 South Madison Avenue in Pasadena, Los Angeles County, California, built in 1911 and designed by Sylvanus B. Marston.","why_significant":"The house is considered one of the best examples of the Prairie School style in Pasadena. It follows Frank Lloyd Wright's 1907 design \"A Fireproof House for $5000\" and reflects Arts and Crafts era residential design. It retains its character-defining features and integrity despite later additions.","narrative":"This two-story house on the west side of South Madison Avenue in Pasadena was built in 1911 to designs by architect Sylvanus B. Marston. It is a California interpretation of the Prairie School, modeled on Frank Lloyd Wright's 1907 \"A Fireproof House for $5000.\" The design is a low, horizontal square box under a hipped roof, with a deep north roof extension that doubles as a porte-cochere carried on large brick piers. Walls are covered in long wooden shingles, with a band of stucco holding rows of casement windows that read as a decorative frieze. A brick foundation supports the wood frame. Later changes include an enclosed front porch, a 1986 addition at the southwest corner, and interior alterations from the 1950s to 1980s. A three-bay garage is a contributing building, and a board-and-batten storage shed is not. The house was listed for its architecture, as one of the best Prairie School examples in Pasadena.","period_of_significance":"1911","architect_builder":"Marston, Sylvanus B.","architectural_style":"Prairie School","criteria":["C"],"status_note":"Currently in use as a single dwelling, with a contributing garage; the storage shed is a non-contributing building.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:27.326827-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/98000959.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/98000959/24dabb3894-800.webp","url_1600":"https://nationalhistoricalregister.com/media/98000959/24dabb3894-1600.webp","licence":"CC BY-SA 3.0","author":"TheCatalyst31","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:House_at_1011_S._Madison_Ave..JPG\" rel=\"noopener\">TheCatalyst31</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:House_at_1011_S._Madison_Ave..JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123857490","wikipedia":"https://en.wikipedia.org/wiki/House_at_1011_S._Madison_Ave.","wikidata":"https://www.wikidata.org/wiki/Q16995936"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/los-angeles-county/house-at-1011-s-madison-ave-98000959/"}