{"nrhp_refnum":"100009936","name":"Griswold Heights Historic District","other_names":[],"category":"district","location":{"address":"Madison Avenue, Project Street, Project Road, and Campbell Avenue","address_restricted":false,"city":"Troy","county":"Rensselaer County","state":"NY","lat":42.71246750000003,"lon":-73.67595254080916,"geom_source":"nps_gis"},"listed_date":"2024-02-20","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture","Politics/Government"],"significance_levels":["local"],"summary":null,"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":null,"wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q130236133"},"indexable":false,"url":"https://nationalhistoricalregister.com/new-york/rensselaer-county/griswold-heights-historic-district-100009936/"}