{"nrhp_refnum":"90001184","name":"Hildreth-Flanagan-Heierman House","other_names":[],"category":"building","location":{"address":"3909 Ave. G","address_restricted":false,"city":"Austin","county":"Travis County","state":"TX","lat":30.301376297000047,"lon":-97.73012147599997,"geom_source":"nps_gis"},"listed_date":"1990-08-16","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A two-story frame single-family house at 3909 Avenue G in the Hyde Park area of Austin, Travis County, Texas, built in 1902 by builder William Voss, Sr., for Charles A. and Nancy Ann Hildreth.","why_significant":"The house is presented as a rare local example of the transition between late 19th and early 20th century architecture, combining Victorian-era massing and roof forms with Classical Revival detailing. Builder William Voss, Sr., blended the two styles, and the house survives virtually unchanged. It is nominated for local architectural significance under Criterion C.","narrative":"Built in 1902 at 3909 Avenue G in Austin's Hyde Park neighborhood, this two-story frame house combines Victorian-era features with Classical Revival detailing. Builder William Voss, Sr., constructed it for Charles A. and Nancy Ann Hildreth for $2,718, including a stable and cistern. The square-plan house sits on a pier-and-beam foundation. Its east facade has a two-tier porch with Doric columns and turned-wood balustrades, while polygonal bays, steeply pitched hipped and gable roofs and buff brick chimneys reflect the earlier Victorian tradition. Charles Hildreth died in 1904, and his widow later married Webster Flanagan, a bookkeeper and Internal Revenue Service collector. In 1929 the property was sold to Harry W. Heierman, a co-founder of Austin Foundry and Machine Shop, who lived there until 1946. The house was listed for its local architectural importance as a rare, largely unchanged example of the transition between two eras. Only a rear addition and metal awnings have altered it.","period_of_significance":"1902","architect_builder":"Voss, William Sr. (builder)","architectural_style":"Classical Revival","criteria":["C"],"status_note":"Described as virtually unaltered and in good condition; still in use as a single dwelling and remains in the family of a 1929 purchaser.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:21.382613-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/73/9702/40970273/content/electronic-records/rg-079/NPS_TX/90001184.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/90001184/4eaca3f577-800.webp","url_1600":"https://nationalhistoricalregister.com/media/90001184/4eaca3f577-1600.webp","licence":"CC BY-SA 3.0","author":"David E Hollingsworth","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Hildreth-Flanagan-Heierman_House.jpg\" rel=\"noopener\">David E Hollingsworth</a>, <a href=\"http://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:Hildreth-Flanagan-Heierman_House.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/40970273","wikipedia":"https://en.wikipedia.org/wiki/Hildreth%E2%80%93Flanagan%E2%80%93Heierman_House","wikidata":"https://www.wikidata.org/wiki/Q5761717"},"indexable":true,"url":"https://nationalhistoricalregister.com/texas/travis-county/hildreth-flanagan-heierman-house-90001184/"}