{"nrhp_refnum":"00000884","name":"Groos, Carl W.A., House","other_names":[],"category":"building","location":{"address":"228 S. Seguin St.","address_restricted":false,"city":"New Braunfels","county":"Comal County","state":"TX","lat":29.701432906000036,"lon":-98.12390917899995,"geom_source":"nps_gis"},"listed_date":"2000-08-17","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["European"],"significance_levels":["local"],"summary":{"what_it_is":"A one-story plastered brick house with a one-room basement at 228 South Seguin Street in New Braunfels, Comal County, Texas, built in 1871 for merchant Carl Groos and his wife Hulda Moureau Groos.","why_significant":"The nomination argues the house is locally significant under Criterion A in the area of Ethnic Heritage: German. It is tied to New Braunfels' early German settlers and their descendants, who shaped the town's commercial and political life. Owners and occupants included a mayor and county judge, a merchant, and the founder of a major flour mill.","narrative":"Built in 1871 at 228 South Seguin Street in New Braunfels, this one-story plastered brick house was constructed for merchant Carl Groos and his bride Hulda Moureau, reportedly as a wedding gift. It has a center-hall plan, a rear ell, a modest pedimented Classical portico, and a cypress-framed floor on a limestone foundation. The Groos couple moved to San Antonio in 1872 but kept the house until 1879. Later occupants included Adolph Giesecke, mayor of New Braunfels and county judge, merchant Fritz Scholl, and flour miller Hippolyt Dittlinger. The house became commercial property in 1946 and has served as offices since the 1960s. A 1999 renovation preserved the original trim, windows, doors and floors and added a separate square conference-room wing. The house is valued for its link to the German settlers who built New Braunfels into a regional center of trade and manufacturing, and it is one of the few remaining residences on a street now largely commercial.","period_of_significance":"1871-1950","architect_builder":"unknown","architectural_style":"Late 19th and 20th Century Revivals: Classical Revival","criteria":["A"],"status_note":"Used as offices since the 1960s; renovated in early 1999 with a new rear addition, and described as being in excellent condition.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:24.006519-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/65/9715/40971565/content/electronic-records/rg-079/NPS_TX/00000884.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/00000884/47a103f75c-800.webp","url_1600":"https://nationalhistoricalregister.com/media/00000884/47a103f75c-1600.webp","licence":"CC BY 4.0","author":"Larry D. Moore","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Carl_groos_house.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:Carl_groos_house.jpg"},"district":{"nrhp_refnum":"100012669","name":"Central New Braunfels Historic District","url":"https://nationalhistoricalregister.com/districts/texas/central-new-braunfels-historic-district-100012669/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/40971565","wikipedia":"https://en.wikipedia.org/wiki/Carl_W._A._Groos_House_(New_Braunfels,_Texas)","wikidata":"https://www.wikidata.org/wiki/Q5040913"},"indexable":true,"url":"https://nationalhistoricalregister.com/texas/comal-county/groos-carl-w-a-house-00000884/"}