{"nrhp_refnum":"78000724","name":"Migliavacca House","other_names":[],"category":"building","location":{"address":"Division St.","address_restricted":false,"city":"Napa","county":"Napa County","state":"CA","lat":38.29499855800003,"lon":-122.28819669699999,"geom_source":"nps_gis"},"listed_date":"1978-03-30","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A three-story Queen Anne style house on Division Street in Napa, California, built 1890-1893 for winemaker G. Migliavacca and designed by W. H. Corlett. It has been moved twice and now stands on a corner lot in Napa's old town area.","why_significant":"The nomination argues the house is one of the largest, most ornate homes in Napa and an unusual variation of Queen Anne style, with Italian slate shingling, circular porch openings and wagon wheel railings. It also reflects the career of Migliavacca, whose winery won international medals. It was moved to avoid demolition but retains architectural value.","narrative":"Built between 1890 and 1893 for Italian-born winemaker G. Migliavacca, this three-story Queen Anne house in Napa was designed by local architect W. H. Corlett. Its lower walls are redwood siding, while the upper stories are covered in imported Italian slate shingles. A corner turret with curved glass, porches on several levels, wagon wheel railings, circular porch openings and elaborate dentil work make it an unusual example of the style. Migliavacca built a winery beside the house that grew to produce over a million gallons a year and earned medals at expositions in Paris, Dublin and Chicago. After the county bought the lot in 1970 for a library, the house faced demolition and was moved twice, reaching its present site in 1975. The brick addition, wine cellar and original landscaping were lost. The house was recognized chiefly for its architectural quality and detail, and for being saved from demolition near its original site.","period_of_significance":"1890-1893","architect_builder":"W.H. CORLETT","architectural_style":"Queen Anne Style","criteria":[],"status_note":"Listed as in excellent condition and unoccupied at the time of nomination, with restoration under way for conversion to office use.","vacant_flag":true,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:31.751426-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/78000724.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/78000724/bf14935a9b-800.webp","url_1600":"https://nationalhistoricalregister.com/media/78000724/bf14935a9b-1600.webp","licence":"CC BY-SA 3.0","author":"Philip Gruenhagen","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Migliavacca_Mansion_ca._1983.jpg\" rel=\"noopener\">Philip Gruenhagen</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:Migliavacca_Mansion_ca._1983.jpg"},"district":{"nrhp_refnum":"97000042","name":"Napa Abajo-Fuller Park Historic District","url":"https://nationalhistoricalregister.com/districts/california/napa-abajo-fuller-park-historic-district-97000042/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123860052","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q133308263"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/napa-county/migliavacca-house-78000724/"}