{"nrhp_refnum":"80001344","name":"Buildings at 860-880 Lake Shore Drive","other_names":["860-880 Lake Shore Drive"],"category":"building","location":{"address":"860--880 Lake Shore Drive","address_restricted":false,"city":"Chicago","county":"Cook County","state":"IL","lat":41.898720000000026,"lon":-87.61871999999994,"geom_source":"nps_gis"},"listed_date":"1980-08-28","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Engineering","Architecture"],"significance_levels":["national"],"summary":{"what_it_is":"Two twenty-six story steel-and-glass apartment towers at 860-880 Lake Shore Drive in Chicago, Illinois, designed by Ludwig Mies van der Rohe and built between 1949 and 1951 for developer Herbert Greenwald.","why_significant":"The nomination presents the towers as the first and most forceful demonstration of Mies's ideas for tall steel and glass structures. They revived the Chicago school tradition of rational design and clear structural expression. The buildings became prototypes for steel and glass skyscrapers worldwide and strongly influenced American architecture of the 1950s through the 1970s.","narrative":"Two rectangular twenty-six story apartment towers stand at 860-880 Lake Shore Drive in Chicago, set a short distance apart at right angles and joined by a steel canopy. Designed by Ludwig Mies van der Rohe for developer Herbert Greenwald and built between 1949 and 1951, they express their steel skeleton openly. Columns stand free of the recessed lobby walls to form an arcade, and narrow I-beams welded to black steel plate over fireproofing concrete create a strong vertical emphasis. Floor-to-ceiling clear glass is set in aluminum frames, and the regular column spacing allows flexible apartment plans. The nomination argues that the towers were the first demonstration of Mies's 1920s glass skyscraper concepts and the first of the glass and steel curtain wall buildings. It credits them as prototypes for many commercial and residential high-rises, and notes the open ground-level arrangement of the two towers differs from the usual wall of buildings along Lake Shore Drive.","period_of_significance":"1949-1951","architect_builder":"Ludwig Mies van der Rohe","architectural_style":null,"criteria":[],"status_note":"Described as unaltered and in good condition, occupied as private residences (apartments, some combined into larger units).","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:35.75834-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/80/8923/28892380/content/electronic-records/rg-079/NPS_IL/80001344.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/80001344/d0c9f3d6d9-800.webp","url_1600":"https://nationalhistoricalregister.com/media/80001344/d0c9f3d6d9-1600.webp","licence":"CC BY-SA 2.5","author":"User:JeremyA","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:860-880_Lake_Shore_Drive.jpg\" rel=\"noopener\">User:JeremyA</a>, <a href=\"https://creativecommons.org/licenses/by-sa/2.5\" rel=\"license noopener\">CC BY-SA 2.5</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:860-880_Lake_Shore_Drive.jpg"},"district":{"nrhp_refnum":"94001029","name":"Lincoln Park","url":"https://nationalhistoricalregister.com/districts/illinois/lincoln-park-94001029/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/28892380","wikipedia":"https://en.wikipedia.org/wiki/860%E2%80%93880_Lake_Shore_Drive","wikidata":"https://www.wikidata.org/wiki/Q273155"},"indexable":true,"url":"https://nationalhistoricalregister.com/illinois/cook-county/buildings-at-860-880-lake-shore-drive-80001344/"}