{"nrhp_refnum":"89000655","name":"Ginn Carriage House","other_names":[],"category":"building","location":{"address":"24 Ginn Rd.","address_restricted":false,"city":"Winchester","county":"Middlesex County","state":"MA","lat":42.44669255100007,"lon":-71.14054768699998,"geom_source":"nps_gis"},"listed_date":"1989-07-05","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A two-story brick carriage house at 24 Ginn Road in Winchester, Massachusetts, built in 1900 as an outbuilding of Edwin Ginn's estate, \"Terrace of Oaks.\" It was later converted to a dwelling.","why_significant":"It is one of only two surviving components of Winchester's most ambitious Georgian Revival estate, the main house having been demolished in 1946. Its slate roof, Flemish bond brickwork and marble trim reflect the architectural quality of the lost estate. It meets criterion C for its architecture.","narrative":"Built in 1900 at 24 Ginn Road in Winchester, Massachusetts, this brick carriage house served the estate of Edwin Ginn, a wealthy textbook publisher and founder of Ginn & Company. The estate, called \"Terrace of Oaks,\" included a main house and other buildings such as a music hall, all demolished in 1946. Only the carriage house and the gardener's house survive. The two-story building follows a U-plan, with side arms projecting forward to form a courtyard. Its main block has a slate hip roof with cresting, while the arms have slate gable roofs with returns. Walls are laid in Flemish bond brick with marble trim, and a copper shed roof shelters three broad segmental arch openings with original glazed and paneled doors. After 1946 it was converted to a house without major exterior changes. It is valued as a well-detailed Georgian Revival example that reflects the quality of the vanished estate.","period_of_significance":null,"architect_builder":null,"architectural_style":"Georgian Revival","criteria":["C"],"status_note":"Condition stated as excellent; converted to a residence after 1946 with no major exterior alterations; currently used as a dwelling.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:13:01.86701-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/5/7908/63790805/content/electronic-records/rg-079/NPS_MA/89000655.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/89000655/49a79610cc-800.webp","url_1600":"https://nationalhistoricalregister.com/media/89000655/49a79610cc-1600.webp","licence":"CC BY-SA 4.0","author":"User:Magicpiano","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:WinchesterMA_GinnCarriageHouse.jpg\" rel=\"noopener\">User:Magicpiano</a>, <a href=\"https://creativecommons.org/licenses/by-sa/4.0\" rel=\"license noopener\">CC BY-SA 4.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:WinchesterMA_GinnCarriageHouse.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63790805","wikipedia":"https://en.wikipedia.org/wiki/Ginn_Carriage_House","wikidata":"https://www.wikidata.org/wiki/Q5563161"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/middlesex-county/ginn-carriage-house-89000655/"}