{"name":"Riverside-West End Historic District","city":"New York City, New York","canonical_url":"https://gydeinfo.com/new-york-city/places/riverside-west-end-historic-district/","markdown_url":"https://gydeinfo.com/new-york-city/places/riverside-west-end-historic-district.md","updated_at":"2026-06-20T00:13:59.476791+00:00","facts":[{"claim":"Extension I has a formally mapped boundary described in the designation report.","citation":"https://www.landmarkwest.org/wp-content/uploads/2023/10/Riverside-Ext-1.pdf","source_title":"Riverside–West End Historic District materials","source_type":"official","allowed_use":"canonical_data","retrieved_at":"2026-06-19T23:00:31.489567+00:00","fact_type":"location","as_of":"2026","confidence":0.88},{"claim":"The Extension II designation report was issued on June 23, 2015.","citation":"https://www.landmarkwest.org/wp-content/uploads/2023/10/Riverside-Ext-1.pdf","source_title":"Riverside–West End Historic District materials","source_type":"official","allowed_use":"canonical_data","retrieved_at":"2026-06-19T23:00:31.489567+00:00","fact_type":"history","as_of":"2026","confidence":0.9},{"claim":"The extension was characterized by residential architecture developed from the 1880s through the 1920s.","citation":"https://www.citylandnyc.org/344-property-extension-to-riversidewest-end-historic-district-designated/","source_title":"344-Property Extension to Riverside/West End Historic District Designated","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-19T23:00:30.658487+00:00","fact_type":"history","as_of":"2015","confidence":0.93},{"claim":"A 344-property extension to the Riverside/West End Historic District was designated.","citation":"https://www.citylandnyc.org/344-property-extension-to-riversidewest-end-historic-district-designated/","source_title":"344-Property Extension to Riverside/West End Historic District Designated","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-19T23:00:30.658487+00:00","fact_type":"significance","as_of":"2015","confidence":0.89},{"claim":"The Historic Districts Council identifies itself as an advocate for New York City's designated historic districts and neighborhoods meriting preservation.","citation":"https://hdc.org/proposed-riverside-drive-west-end-historic-district-extension-1/","source_title":"Proposed Riverside Drive-West End Historic District Extension 1","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-19T23:00:29.851881+00:00","fact_type":"significance","as_of":"2011","confidence":0.95},{"claim":"The proposed district area includes revival-style rowhouses, early 20th-century apartment buildings, and later high-rises designed by major architects such as Clarence True, C.P.H. 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