{"nrhp_refnum":"90000128","name":"Central Square Historic District","other_names":["See Also:City Hall Historic District","Odd Fellows Hall","First"],"category":"district","location":{"address":"Roughly Massachusetts Ave. from Clinton St. to Main St.","address_restricted":false,"city":"Cambridge","county":"Middlesex County","state":"MA","lat":42.365222000000045,"lon":-71.10400220136876,"geom_source":"nps_gis"},"listed_date":"1990-03-02","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Community Planning and Development","Commerce","Transportation","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A linear commercial district of seven blocks along Massachusetts Avenue in Central Square, Cambridgeport, Cambridge, Massachusetts. It holds 89 buildings dating from 1807 to 1987, of which 61 are contributing, plus the contributing street pattern.","why_significant":"The district reflects Cambridgeport's commercial, residential and industrial growth tied to transportation improvements. Its buildings show Central Square's evolution as Cambridge's downtown, from Federal rowhouses through Victorian blocks, early 20th century banks and offices, to the 1926 skyscraper. The form's Section 8 text, which is partly truncated, also stresses the shift to smaller retail buildings after the 1912 subway opened.","narrative":"Central Square is the commercial heart of Cambridgeport, and this district covers seven blocks of Massachusetts Avenue from Bigelow and Sellers Streets to Lafayette Square. It contains 89 buildings dating from 1807 to 1987, 61 of them contributing, along with the historic street pattern. The oldest is Dana Row, a Federal brick rowhouse of 1807. Later landmarks include the Second Empire Chamberlain-Hyde Block, the Richardsonian Romanesque Cambridge Mutual Fire Insurance building, the Beaux Arts Cambridgeport Savings Bank of 1904, and Prospect House with its 1908 white terracotta Tudor facade. The ten-story Central Square Building of 1926 was Cambridge's first skyscraper. Apartment blocks such as The Longfellow show speculators' hopes for eastern Massachusetts Avenue. The district matters because its buildings record the area's growth as a full-service downtown, and its later shift toward smaller one- to three-story retail buildings after the 1912 subway brought Boston markets within easy reach.","period_of_significance":null,"architect_builder":"Thomas Silloway; John A. Hasty; C. Herbert McClare; Chamberlain and Blackall; Newhall and Blevins; Shepley, Rutan and Coolidge; William Mowll; Blackall, Clapp and Whittemore; F. A. Norcross; Alexander R. Esty; Allen and Collins; George Fogerty","architectural_style":"Federal, Italianate, Second Empire, Richardsonian Romanesque, Renaissance Revival, Gothic Revival, Queen Anne, Colonial Revival, Beaux Arts, Tudor Revival, Moderne, Sullivanesque, Greek Revival","criteria":[],"status_note":"Still in active mixed use, with commercial, government, religious and residential functions continuing; many storefronts have been altered since 1950.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:13:03.604056-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/18/7915/63791518/content/electronic-records/rg-079/NPS_MA/90000128.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/90000128/1e9f08b2b5-800.webp","url_1600":"https://nationalhistoricalregister.com/media/90000128/1e9f08b2b5-1600.webp","licence":"CC BY-SA 2.0","author":"Eric Kilby","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Central_Square_from_above.jpg\" rel=\"noopener\">Eric Kilby</a>, <a href=\"https://creativecommons.org/licenses/by-sa/2.0\" rel=\"license noopener\">CC BY-SA 2.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Central_Square_from_above.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63791518","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q131904498"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/middlesex-county/central-square-historic-district-90000128/"}