{"nrhp_refnum":"85003428","name":"Red Hill Historic District","other_names":["Red Hill"],"category":"district","location":{"address":"148, 152, and 200--600 Main St., 98--226 and 21--231 W. Sixth St., and 532--550 Adams St.","address_restricted":false,"city":"Red Hill","county":"Montgomery County","state":"PA","lat":40.37715975150007,"lon":-75.4806836305304,"geom_source":"nps_gis"},"listed_date":"1985-10-31","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A historic district centered on Main Street (Route 29) in the borough of Red Hill, Montgomery County, Pennsylvania, covering roughly 0.78 square miles of turnpike-strip village with 185 buildings. It was originally part of Upper Hanover Township and was formerly called Hillegassville.","why_significant":"The district is significant as a well-preserved late-nineteenth and early-twentieth century main street community whose growth was shaped by the cigar manufacturing industry, which transformed a sparsely settled village into a work and residence borough. It contains a unified collection of brick workers' housing, Pennsylvania German slate-shingled houses, Queen Anne and Victorian dwellings, and factories, along with earlier Hillegass family buildings of individual importance.","narrative":"Red Hill is a small borough along Main Street (Route 29) in Montgomery County, Pennsylvania, whose core developed along the road laid out in 1735 as the Great Road to Philadelphia. Its growth came with the cigar industry of the 1880s to 1920s. Miller and Kline built a three-and-one-half-story brick cigar factory at 350 Main Street in the mid-1890s, and builders filled the gaps on either side with single and double brick millworkers' houses. S.C. Moyer's late-1880s factory on East Sixth Street drew further workers' housing, and William N. Trump built a rowhouse group on Adams Street by 1910. The district also keeps earlier buildings, including the Hillegassville Hotel of 1811 and the late Federal Josiah Hillegass House of 1847. Of its 185 buildings, 154 are contributing and 9 significant, and the district is valued for its surviving form and porches.","period_of_significance":"1811 - 1925","architect_builder":null,"architectural_style":"Queen Anne; Pennsylvania German; Georgian vernacular; late Federal; Greek Revival; Downing Gothic; Colonial Revival","criteria":[],"status_note":"Restoration is evident in repointing and painting, and many turn-of-the-century porches survive; 22 of the 185 buildings are intrusions.","vacant_flag":false,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:32.925869-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/85003428.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/85003428/ae177fa1c1-800.webp","url_1600":"https://nationalhistoricalregister.com/media/85003428/ae177fa1c1-1600.webp","licence":"CC0","author":"Smallbones","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Red_Hill_HD_Adams_Montco_PA.jpg\" rel=\"noopener\">Smallbones</a>, <a href=\"http://creativecommons.org/publicdomain/zero/1.0/deed.en\" rel=\"license noopener\">CC0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Red_Hill_HD_Adams_Montco_PA.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71997970","wikipedia":"https://en.wikipedia.org/wiki/Red_Hill_Historic_District","wikidata":"https://www.wikidata.org/wiki/Q7304274"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/montgomery-county/red-hill-historic-district-85003428/"}