{"nrhp_refnum":"11000492","name":"Hartwell, John S. House","other_names":[],"category":"building","location":{"address":"423 Lincoln Ave.","address_restricted":false,"city":"Pasadena","county":"Los Angeles County","state":"CA","lat":34.15251392300007,"lon":-118.15258715199997,"geom_source":"nps_gis"},"listed_date":"2011-08-09","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A one-and-one-half story, 1,578 square-foot Queen Anne style single-family house at 423 Lincoln Avenue in Pasadena, Los Angeles County, California, built in 1887-1888 on a 0.28-acre lot.","why_significant":"The house is locally significant under Criterion C as a notable example of the Queen Anne subtype of single-family residence in Pasadena. It retains a high level of integrity and much of its decorative detailing, including turned posts, spindlework and fish-scale shingles. It was built for John S. Hartwell, an early Pasadena citizen who owned and subdivided land and later helped found Mountain View Cemetery.","narrative":"Built in the late 1880s on Lincoln Avenue in Pasadena, this one-and-one-half story house is a Queen Anne style home that still serves as a single-family dwelling. It has an irregular plan, a steeply pitched hipped roof, wood drop channel siding, and polygonal bays whose gable ends carry bands of hexagonal and rounded fish-scale shingles. A wraparound porch with turned posts, spindles and a turned balustrade adds to its decorative character. Some changes have occurred, including a flat-roofed dormer, a replacement front door, a new concrete foundation and an enlarged rear porch, but the roof form, wall materials, windows and ornament remain largely intact. The house was listed for its architecture as a locally notable example of Queen Anne residential design in Pasadena. It was originally built for John S. Hartwell, an early Pasadena resident who owned and subdivided land and later assisted in founding Mountain View Cemetery.","period_of_significance":"1888","architect_builder":null,"architectural_style":"Late Victorian/Queen Anne","criteria":["C"],"status_note":"Currently used as a single dwelling, with some minor alterations such as a flat-roofed dormer, replacement front door, new concrete foundation and an extended rear porch.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:29.686698-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/11000492.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/11000492/dc79599870-800.webp","url_1600":"https://nationalhistoricalregister.com/media/11000492/dc79599870-1600.webp","licence":"CC BY-SA 3.0","author":"Brianyoungramirez","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:John_S._Hartwell_House_2.JPG\" rel=\"noopener\">Brianyoungramirez</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:John_S._Hartwell_House_2.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123857482","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q133289813"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/los-angeles-county/hartwell-john-s-house-11000492/"}