{"nrhp_refnum":"09001300","name":"One Lombard Street","other_names":["Merchants Ice &amp","Cold Storage","Union Can Co."],"category":"building","location":{"address":"1 Lombard St.","address_restricted":false,"city":"San Francisco","county":"San Francisco","state":"CA","lat":37.80399531300003,"lon":-122.40198863599994,"geom_source":"nps_gis"},"listed_date":"2010-02-03","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A three-story brick warehouse with a partial attic at the southwest corner of Battery and Lombard Streets in San Francisco, designed in 1900 and built in 1901. It was historically known as Merchants Ice & Cold Storage / Union Can Company.","why_significant":"The nomination argues it is an excellent example of early twentieth-century industrial architecture and is tied to master architect Willis Polk. It was Polk's first warehouse and his first large-scale commercial work, and the only industrial building from the Percy & Polk partnership. It also shows a transitional period in industrial design, balancing function and beauty.","narrative":"One Lombard Street is a load-bearing brick warehouse at the corner of Battery and Lombard Streets in San Francisco, standing on filled land that was once part of the bay. Designed in 1900 and completed in 1901, it has three stories plus a partial attic, arched window openings, brick pilasters and a brick and terra cotta cornice. The Union Can Company first occupied it, and Merchants Ice & Cold Storage used it until 1975. Its significance rests on architecture. Willis Polk designed it while working with George W. Percy, and it was Polk's first warehouse and his move into large-scale commercial work. It is also the only industrial building produced by the Percy & Polk partnership. The design shows Polk's preference for Classical restraint and reflects a shift in industrial buildings toward balancing function with beauty. Windows were bricked over in 1924 and reopened in 1976, yet the exterior keeps a high level of integrity, and the heavy timber interior framing remains largely intact.","period_of_significance":"1900-1901","architect_builder":"Polk, Willis","architectural_style":"Early 20th Century Industrial","criteria":["C"],"status_note":"Still in use for business and professional tenants since the 1970s. The exterior retains a high level of integrity and the interior timber framing is essentially intact.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:29.517742-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/09001300.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/09001300/df026b0a26-800.webp","url_1600":"https://nationalhistoricalregister.com/media/09001300/df026b0a26-1600.webp","licence":"CC BY-SA 3.0","author":"Smallbones","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:1_Lombard_SF_nrhp.JPG\" rel=\"noopener\">Smallbones</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:1_Lombard_SF_nrhp.JPG"},"district":{"nrhp_refnum":"06000372","name":"Port of San Francisco Embarcadero Historic District","url":"https://nationalhistoricalregister.com/districts/california/port-of-san-francisco-embarcadero-historic-district-06000372/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123861230","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q133464780"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/san-francisco/one-lombard-street-09001300/"}