{"nrhp_refnum":"05000893","name":"Roy-Hardin House","other_names":["Millbrook"],"category":"building","location":{"address":"1803 Evergreen Ave.","address_restricted":false,"city":"Austin","county":"Travis County","state":"TX","lat":30.249556823000034,"lon":-97.76508542599998,"geom_source":"nps_gis"},"listed_date":"2005-08-17","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A two-story rubble limestone house at 1803 Evergreen Avenue in south Austin, Texas, built in 1895 as a mill by W.C. Roy and converted to a residence. It was extensively renovated in 1939-40 by university professor Ernest Hardin and is known as Millbrook.","why_significant":"The nomination argues the property is significant locally for its vernacular stone construction and for the 1939-40 Hardin renovation, which added salvaged architectural elements from demolished buildings such as the Driskill Hotel and the Governor's Mansion. It also reflects the Bouldin and Roy family history and Hardin's garden landscape. The form states the 1939-40 alterations have greater significance and integrity than the 1895 appearance.","narrative":"Built in 1895 as a water mill and soon converted into a home, this two-story limestone building at 1803 Evergreen Avenue in south Austin is known as the Roy-Hardin House, or Millbrook. Rancher and stonemason W.C. Roy built it into a bluff above a wet-weather creek, then finished it as a residence when the stream proved too unreliable to power a mill. Its walls are two to three feet thick, and a geological fault forms a central interior wall. In 1939-40 university professor Ernest Hardin rebuilt the crumbling structure and added grillwork, doors, paneling, tile and marble salvaged from demolished buildings, including the Driskill Hotel and the Governor's Mansion. He also laid out terraces, stone paths and a footbridge in the garden. The property includes a carriage house and old stone walls that tradition attributes to Bouldin family slaves. The house was named a Recorded Texas Historic Landmark in 1967 and is valued for its vernacular construction and Hardin-era character.","period_of_significance":null,"architect_builder":"W.C. Roy (builder, per his daughters); Ernest Hardin (1939-40 renovation and landscaping)","architectural_style":"No style (vernacular stone building)","criteria":[],"status_note":"Currently used as a single dwelling with secondary structures and garden; the form describes it as privately owned and in residential use.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:23.57555-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/16/9736/40973616/content/electronic-records/rg-079/NPS_TX/05000893.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/40973616","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q110002743"},"indexable":true,"url":"https://nationalhistoricalregister.com/texas/travis-county/roy-hardin-house-05000893/"}