{"nrhp_refnum":"02000177","name":"Rock Spring Farm","other_names":["VDHR no. 253-5046"],"category":"building","location":{"address":"329 Loudoun St. SW","address_restricted":false,"city":"Leesburg","county":"Loudoun County","state":"VA","lat":39.11635101100006,"lon":-77.57441635199996,"geom_source":"nps_gis"},"listed_date":"2002-03-13","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A farm property at 329 Loudoun Street SW in Leesburg, Loudoun County, Virginia, centered on a brick two-and-a-half-story Federal-style dwelling completed by 1826, with a freestanding kitchen and several farm outbuildings on about five and a half acres.","why_significant":"The form describes a Federal-style hall/parlor house that was later enlarged and given Colonial Revival detailing around 1906. The farm sits on a tributary of the Town Spring, which supplied Leesburg's water from 1757 until 1978. It also illustrates the pattern of estates established on the edge of the growing town in the early 19th century.","narrative":"Rock Spring Farm occupies about five and a half acres on the south side of Loudoun Street, west of central Leesburg. Its main house, completed by 1826, is a two-and-a-half-story brick Federal-style dwelling with a hall/parlor plan and a one-room southeast wing. Around 1906 a matching northwest wing gave the facade a symmetrical five-part form, and Colonial Revival details were added. A rear ell was built in the early twentieth century, and in 1980 a hyphen joined the house to its original brick kitchen. Outbuildings include a springhouse, smokehouse, barn, dairy, silo, stable and tractor shed. The farm took its name from a tributary of the Town Spring, which supplied Leesburg with water from the town's platting in 1757 until 1978. Early owners included George Rhodes and, from 1844, retired army officer Major Henry Saunders, who renamed the property. The estate reflects the early nineteenth-century pattern of large properties developing on the edge of Leesburg.","period_of_significance":null,"architect_builder":null,"architectural_style":"Early Republic/Federal; Late 19th & 20th Century Revivals/Colonial Revival","criteria":[],"status_note":"Still in use as a single-family dwelling with secondary structures; the dairy is leased as a dwelling and the smokehouse is used as an art studio.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:52:00.365725-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/65/6815/41681565/content/electronic-records/rg-079/NPS_VA/02000177.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/02000177/b08ea038d5-800.webp","url_1600":"https://nationalhistoricalregister.com/media/02000177/b08ea038d5-1600.webp","licence":"CC BY-SA 3.0","author":"Jerrye &amp; Roy Klotz, MD","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:ROCK_SPRING_FARM,_LEESBURG,_LOUDOUN_COUNTY.jpg\" rel=\"noopener\">Jerrye &amp;amp; Roy Klotz, MD</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:ROCK_SPRING_FARM,_LEESBURG,_LOUDOUN_COUNTY.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/41681565","wikipedia":"https://en.wikipedia.org/wiki/Rock_Spring_Farm","wikidata":"https://www.wikidata.org/wiki/Q14713151"},"indexable":true,"url":"https://nationalhistoricalregister.com/virginia/loudoun-county/rock-spring-farm-02000177/"}