{"nrhp_refnum":"80000670","name":"Suffolk County Jail","other_names":["Charles Street Jail"],"category":"building","location":{"address":"215 Charles St.","address_restricted":false,"city":"Boston","county":"Suffolk County","state":"MA","lat":42.36199329900006,"lon":-71.06966688899996,"geom_source":"nps_gis"},"listed_date":"1980-04-23","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture","Social History"],"significance_levels":["national"],"summary":{"what_it_is":"The Suffolk County Jail, also called the Charles Street Jail, is a granite-faced masonry jail at 215 Charles Street in Boston, designed in 1848 and completed by 1851 to a cruciform plan by architect Gridley J.F. Bryant.","why_significant":"The nomination calls it the prime institutional example of the Boston Granite Style of the mid-19th century, designed by one of that style's foremost exponents. It also argues the jail is the definitive example of an enlightened 19th-century attitude toward prisoners, built on the Auburn Plan with communal exercise yards, natural light and ventilation. Its design influenced other prisons, including H.H. Richardson's Allegheny County jail.","narrative":"Built between 1848 and 1851 on landfill beside Massachusetts General Hospital, the Suffolk County Jail on Charles Street in Boston is a granite-faced masonry building with a cruciform plan. Four four-story wings radiate from an octagonal central core, and the exterior shows rusticated granite, round-headed window arches and Renaissance-inspired detail. Gridley J.F. Bryant designed it, working with prison reformer Rev. Louis Dwight. Its layout followed the Auburn Plan, which favored cells for sleeping only, with communal work and exercise, over solitary confinement. The design also provided sunlight, a ventilating system and separate wings for different classes of inmates. Contemporary guidebooks reported that other jurisdictions adopted the plan, and an English magazine published it in 1849. The north wing was enlarged in 1901 and the west wing in 1920, both copying the original design. The jail is recognized as a leading example of Boston granite architecture and of reform-minded penology.","period_of_significance":null,"architect_builder":"Gridley J.F. Bryant","architectural_style":"Boston Granite Style","criteria":[],"status_note":"Occupied and in use as a jail at the time of nomination; plans called for rehabilitation for continued use as a pre-trial detention center.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:11:53.716401-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/24/7970/63797024/content/electronic-records/rg-079/NPS_MA/80000670.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/80000670/921e7deb37-800.webp","url_1600":"https://nationalhistoricalregister.com/media/80000670/921e7deb37-1600.webp","licence":"CC BY-SA 4.0","author":"Kenneth C. Zirkel","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Liberty_Hotel_formerly_Charles_Street_Jail.jpg\" rel=\"noopener\">Kenneth C. Zirkel</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:Liberty_Hotel_formerly_Charles_Street_Jail.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63797024","wikipedia":"https://en.wikipedia.org/wiki/Charles_Street_Jail","wikidata":"https://www.wikidata.org/wiki/Q5082720"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/suffolk-county/suffolk-county-jail-80000670/"}