{"nrhp_refnum":"12001266","name":"Bloomfield","other_names":["Holly Knoll","44fx2684","VDHR File #029-0115"],"category":"building","location":{"address":"12000 Leesburg Pike","address_restricted":false,"city":"Herndon","county":"Fairfax (city and county)","state":"VA","lat":39.01197709500005,"lon":-77.3594262654226,"geom_source":"nps_gis"},"listed_date":"2013-02-05","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"Bloomfield (also called Holly Knoll) is a two-story, five-bay brick I-House with a brick service wing on an 11.35-acre site at 12000 Leesburg Pike, Herndon, northwestern Fairfax County, Virginia. The main block dates to about 1858 and the wing to about 1870.","why_significant":"The nomination argues Bloomfield is one of the last remaining late-period antebellum brick farmhouses in northwestern Fairfax County. Its Federal and Greek Revival detailing is more elaborate than that of other I-Houses in the county from the period. The exterior of the original house is well preserved. It is nominated at the local level under Criterion C for Architecture.","narrative":"Bloomfield is a two-story, five-bay, side-gabled brick I-House on an 11.35-acre property along Leesburg Pike in northwestern Fairfax County. The main block was built about 1858 for Martha Mead Carper, after family tradition says an earlier house burned. A brick inscribed 1858 and a receipt for bricks support that date. A large brick service wing was added about 1870. No architect is recorded; the design likely drew on familiar local models such as her childhood home, Greenway, near Leesburg. The house combines Federal and Greek Revival details, including a symmetrical facade, jack arches, a dogtooth brick course, a small front portico and a door with sidelights and transom. Such Federal detailing was unusually late for the 1850s. Mid-20th century additions sit behind the older house and do not obscure its main views. The property is considered locally significant for architecture, with a period of significance from about 1858 to 1941, when it left the Carper and Hammond families.","period_of_significance":"ca. 1858 - 1941","architect_builder":null,"architectural_style":"Early Republic: Federal; Mid-19th Century: Greek Revival; Other: I-House","criteria":["C"],"status_note":"Currently used as a single dwelling; the original house exterior is well preserved, with mid-20th century additions at the rear.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:52:03.1074-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/82/6804/41680482/content/electronic-records/rg-079/NPS_VA/12001266.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/12001266/f65e6e4466-800.webp","url_1600":"https://nationalhistoricalregister.com/media/12001266/f65e6e4466-1600.webp","licence":"CC BY-SA 3.0","author":"LeiferJM","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Bloomfield_Manor.JPG\" rel=\"noopener\">LeiferJM</a>, <a href=\"https://creativecommons.org/licenses/by-sa/3.0\" rel=\"license noopener\">CC BY-SA 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Bloomfield_Manor.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/41680482","wikipedia":"https://en.wikipedia.org/wiki/Bloomfield_(Herndon,_Virginia)","wikidata":"https://www.wikidata.org/wiki/Q16843320"},"indexable":true,"url":"https://nationalhistoricalregister.com/virginia/fairfax/bloomfield-12001266/"}