{"nrhp_refnum":"09000921","name":"Hillsboro Historic District (Boundary Increase)","other_names":[],"category":"district","location":{"address":"Charles Town Pike, between Hillsboro Rd. and Stony Point Rd.","address_restricted":false,"city":"Hillsboro","county":"Loudoun County","state":"VA","lat":39.19703549850004,"lon":-77.7226850910552,"geom_source":"nps_gis"},"listed_date":"2010-03-23","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture","Commerce"],"significance_levels":["local"],"summary":{"what_it_is":"A small rural town historic district in Hillsboro, Loudoun County, Virginia, along Charles Town Pike. This updated nomination expands the earlier district boundaries to include outlying properties tied to the town's milling history, with buildings dating from about 1740 onward.","why_significant":"The nomination argues the district is significant for architecture and commerce. Its local bluestone and log buildings reflect Quaker influence and a vernacular tradition, mixed with Federal, Italianate and Queen Anne examples. Hillsboro also grew as a milling and trading town until the mills closed around 1940-41. The added properties present that milling history more fully.","narrative":"Hillsboro is a small community in the northern Piedmont of Loudoun County, Virginia, set in a gap of Short Hill Mountain beside the North Fork of Catoctin Creek. Most of its buildings line Charles Town Pike and are built of local bluestone fieldstone or hewn log, giving the town a consistent color, texture and scale. Earliest surviving buildings date from about 1740, including a three-part roadhouse, and later examples include the 1875 Old Stone School and a store completed in 1930. Styles range from vernacular dwellings to Federal, Italianate and Queen Anne buildings, many combining home and business under one roof. The town grew from the late eighteenth century until the Civil War, supported by mills and trade, and declined as improved technology and new roads shifted commerce elsewhere. The last mills were razed by 1941. This updated listing adds nearby properties that show Hillsboro's role as a milling town, and recognizes its architecture and commerce between about 1740 and 1941.","period_of_significance":"ca. 1740 - 1941","architect_builder":null,"architectural_style":"Early Republic/Federal; Late Victorian/Queen Anne; Modern Movement; Other: I-house","criteria":["A","C"],"status_note":"Largely a residential community. Current functions include single dwellings, a specialty store, a meeting hall, a school and agricultural fields.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:52:03.293791-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/93/6815/41681593/content/electronic-records/rg-079/NPS_VA/09000921.pdf"},"photo":null,"district":{"nrhp_refnum":"79003049","name":"Hillsboro Historic District","url":"https://nationalhistoricalregister.com/districts/virginia/hillsboro-historic-district-79003049/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/41681593","wikipedia":null,"wikidata":null},"indexable":true,"url":"https://nationalhistoricalregister.com/virginia/loudoun-county/hillsboro-historic-district-boundary-increase-09000921/"}