{"nrhp_refnum":"70000751","name":"Sebastopol","other_names":["Zorn House"],"category":"building","location":{"address":"NE corner of W. Court and N. Erkel Sts.","address_restricted":false,"city":"Seguin","county":"Guadalupe County","state":"TX","lat":29.569494573000043,"lon":-97.97288484899997,"geom_source":"nps_gis"},"listed_date":"1970-08-25","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"Sebastopol (Zorn House) is a one-story poured-concrete Greek Revival residence at the northeast corner of West Court and North Erkel streets in Seguin, Guadalupe County, Texas, built 1850-55 for Catherine LeGette.","why_significant":"The nomination presents it as an unusual flat-roofed Greek Revival house and an early use of poured concrete. Its flat roof held a water reservoir meant to cool the interior. Its design is credited to Colonel J. W. Young, who built it for his sister with several named collaborators.","narrative":"Sebastopol is a one-story Greek Revival house in Seguin, Texas, built between 1850 and 1855 of poured concrete. Colonel J. W. Young conceived it for his sister, Catherine LeGette, and hired Henry Erkel, John Wesley Reagan and Dr. Richard Parks to help build it. Erkel produced the walnut woodwork, Reagan oversaw the limestone work, and Parks supplied the concrete formula, for which he later received a patent. The main level is T-shaped, with inset galleries and eight squared porch columns. The flat roof is lined to hold a shallow water reservoir, which Young believed would keep the interior cool in summer. Windows are nine-over-nine double-hung sash, and door and window frames follow a LeFever-type design. Later owners included Joseph Zorn, founder of the town of Zorn, and the Seguin Conservation Society. The house received an Award of Merit in 1930 and was designated a Recorded Texas Historic Landmark in 1964. It is valued for its unusual design and early use of poured concrete.","period_of_significance":"1850-55","architect_builder":"Colonel J. W. Young (originator); Henry Erkel (walnut woodwork); John Wesley Reagan (limestone construction); Dr. Richard Parks (poured concrete formula)","architectural_style":"Greek Revival","criteria":[],"status_note":"Listed in good condition, unaltered, on its original site, and used as a museum; owned by the Seguin Conservation Society.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:19.377017-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/13/9722/40972213/content/electronic-records/rg-079/NPS_TX/70000751.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/70000751/a91bd74903-800.webp","url_1600":"https://nationalhistoricalregister.com/media/70000751/a91bd74903-1600.webp","licence":"CC BY 4.0","author":"Larry D. Moore","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Sebastopol_house_shs.jpg\" rel=\"noopener\">Larry D. Moore</a>, <a href=\"https://creativecommons.org/licenses/by/4.0\" rel=\"license noopener\">CC BY 4.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Sebastopol_house_shs.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/40972213","wikipedia":"https://en.wikipedia.org/wiki/Sebastopol_House_Historic_Site","wikidata":"https://www.wikidata.org/wiki/Q7442726"},"indexable":true,"url":"https://nationalhistoricalregister.com/texas/guadalupe-county/sebastopol-70000751/"}