{"nrhp_refnum":"86001265","name":"Berkeley Street Historic District (Boundary Increase)","other_names":["See Also:Berkeley Street Historic District"],"category":"district","location":{"address":"1--8 Berkeley Pl.","address_restricted":false,"city":"Cambridge","county":"Middlesex County","state":"MA","lat":42.37803900000006,"lon":-71.12504750427905,"geom_source":"nps_gis"},"listed_date":"1986-05-19","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Literature","Architecture"],"significance_levels":["state"],"summary":{"what_it_is":"A boundary increase to the Berkeley Street and Berkeley Place Historic District in Cambridge, Massachusetts, covering about 7.19 acres and including properties at 20 Berkeley Street, 4 Berkeley Street and 7 Berkeley Place.","why_significant":"The available text does not include the statement of significance, so the reasons for listing are not given. It records only a general date range of 1850-1936 for the area.","narrative":"This entry extends an existing historic district in Cambridge, Massachusetts, that takes in Berkeley Street and Berkeley Place. The added area covers roughly 7.19 acres and carries a general date range of 1850 to 1936. The surviving text names three properties within it: 20 Berkeley Street, 4 Berkeley Street and 7 Berkeley Place. The inventory form was prepared by the Cambridge Historical Commission, with fieldwork dated 1965 and 1985, as part of the Cambridge Multiple Resource Area survey. The extension was accepted and entered in the register in May 1986. The text available is mostly form headers, review sheets and map data, so the architecture, builders and specific reasons for significance are not described. The record establishes the location, size, date range and the individual addresses included in the increase.","period_of_significance":"1850-1936","architect_builder":null,"architectural_style":null,"criteria":[],"status_note":null,"vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:13:01.711819-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/87/7922/63792287/content/electronic-records/rg-079/NPS_MA/86001265.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/86001265/42b086f5bc-800.webp","url_1600":"https://nationalhistoricalregister.com/media/86001265/42b086f5bc-1600.webp","licence":"CC BY-SA 4.0","author":"User:Magicpiano","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:CambridgeMA_BerkeleyStreetHD.jpg\" rel=\"noopener\">User:Magicpiano</a>, <a href=\"https://creativecommons.org/licenses/by-sa/4.0\" rel=\"license noopener\">CC BY-SA 4.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:CambridgeMA_BerkeleyStreetHD.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63792287","wikipedia":"https://en.wikipedia.org/wiki/Berkeley_Street_Historic_District","wikidata":"https://www.wikidata.org/wiki/Q4892113"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/middlesex-county/berkeley-street-historic-district-boundary-increase-86001265/"}