{"nrhp_refnum":"100012666","name":"IBM Building","other_names":["East Commons Professional Building"],"category":"building","location":{"address":"4 Allegheny Center","address_restricted":false,"city":"Pittsburgh","county":"Allegheny County","state":"PA","lat":40.45317800000004,"lon":-80.00429499999996,"geom_source":"nps_gis"},"listed_date":"2026-01-30","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/pennsylvania/allegheny-county/ibm-building-100012666/"}