{"nrhp_refnum":"100010711","name":"The Rockwell House","other_names":["House on a Bluff"],"category":"building","location":{"address":"20841 Oak Lane Dr.","address_restricted":false,"city":"Olympia Fields","county":"Cook County","state":"IL","lat":41.51083500000004,"lon":-87.70438999999999,"geom_source":"nps_gis"},"listed_date":"2024-08-16","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":null,"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":null,"wikipedia":null,"wikidata":null},"indexable":false,"url":"https://nationalhistoricalregister.com/illinois/cook-county/the-rockwell-house-100010711/"}