{"nrhp_refnum":"83000836","name":"Warren Block","other_names":[],"category":"building","location":{"address":"155 Main St.","address_restricted":false,"city":"Marlborough","county":"Middlesex County","state":"MA","lat":42.34720680800007,"lon":-71.54846922699994,"geom_source":"nps_gis"},"listed_date":"1983-03-10","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Commerce","Architecture"],"significance_levels":["state"],"summary":{"what_it_is":"A four-story brick commercial building at 155 Main Street in downtown Marlborough, Massachusetts, erected in 1891 and also known as the Eagle Building.","why_significant":"The nomination argues the building is a rare survivor of Marlborough's late 19th century commercial prosperity, tied to the city's shoe industry. It is also presented as a fine example of the period's eclectic architecture. It was erected by a prominent local businessman, and with the adjacent Temple Building it forms the most intact portion of the Victorian streetscape.","narrative":"Warren Block is a four-story brick commercial building at 155 Main Street in downtown Marlborough, built in 1891 for local businessman Winslow Morse Warren. Its facade is covered in Roman buff brick laid in ornamental patterns, with reddish-brown mortar that matches the sandstone trim, fluted iron posts on the ground floor, and a corbeled cornice. The upper three stories remain unaltered, and the interior keeps marble stairs, a leaded skylight and a paneled elevator cab. Warren was an express company proprietor, insurer, bank director and town treasurer, and the fourth floor was designed as a club room. The building is significant as a rare survivor of the commercial prosperity that came to Marlborough with the railroad and its boot and shoe industry. Along with the neighboring Temple Building, it is the most intact remnant of the city's Victorian Main Street. The probable builder was Joseph E. Warren & Company, though this is not documented.","period_of_significance":"1800-1899","architect_builder":"Joseph E. Warren (probable)","architectural_style":null,"criteria":["A","C"],"status_note":"Described as in excellent condition and altered at the ground floor; at the time of nomination it was being rehabilitated and adapted to apartments.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:11:57.135419-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/58/7956/63795658/content/electronic-records/rg-079/NPS_MA/83000836.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/83000836/1db4baa8de-800.webp","url_1600":"https://nationalhistoricalregister.com/media/83000836/1db4baa8de-1600.webp","licence":"Public domain","author":"Marcbela (Marc N. Belanger)","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Warren_Block_Marlborough.jpg\" rel=\"noopener\">Marcbela (Marc N. Belanger)</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Warren_Block_Marlborough.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63795658","wikipedia":"https://en.wikipedia.org/wiki/Warren_Block_(Marlborough,_Massachusetts)","wikidata":"https://www.wikidata.org/wiki/Q7970060"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/middlesex-county/warren-block-83000836/"}