{"version":"1.0","type":"card","id":"7d755e94-fd07-448b-894f-a2c3d6b2f91a","url":"https://stacklist.com/card/7d755e94-fd07-448b-894f-a2c3d6b2f91a","title":"How Billionaire's Row Came to Be","source_url":"https://buildingsdb.com/article/how-billionaires-row-came-to-be-and-what-comes-next/","note":"The story behind the Row is one of zoning loopholes, air rights battles, and engineering ambition. Developers exploited 57th Street's wide street classification to build towers of unprecedented height directly south of Central Park, a strategy that cannot easily be replicated anywhere else in Manhattan.","image":{"url":"https://ucarecdn.com/6e4b4f0c-3ef9-4503-964a-9eb8a765c4a2/","alt":"How Billionaire's Row Came to Be","width":1920,"height":1375},"stack":{"id":"6e73dd3f-e104-4865-a9b1-5ded5c70e4ae","title":"The Buildings","url":"https://stacklist.com/c/places/stack/6e73dd3f-e104-4865-a9b1-5ded5c70e4ae"},"created_at":"2026-06-24T16:24:39.646Z","updated_at":null,"aco":{"summary":"Billionaires' Row on 57th Street in Manhattan emerged through a combination of zoning loopholes, air rights acquisitions, and strategic developer decisions that transformed the corridor into a cluster of ultra-thin, record-breaking supertall skyscrapers. Key architectural icons including One57, 432 Park Avenue, and the Steinway Tower showcase engineering marvels that created a prestigious second facade to Central Park, attracting global billionaires.","tags":["billionaires-row","nyc-architecture","skyscrapers","zoning","luxury-real-estate","57th-street","urban-development"],"key_entities":[{"name":"Billionaires' Row","type":"location","confidence":0.98},{"name":"57th Street","type":"location","confidence":0.97},{"name":"Central Park","type":"location","confidence":0.95},{"name":"New York City","type":"location","confidence":0.95},{"name":"One57","type":"location","confidence":0.93},{"name":"432 Park Avenue","type":"location","confidence":0.93},{"name":"111 West 57th Street","type":"location","confidence":0.92},{"name":"Christian de Portzamparc","type":"person","confidence":0.95},{"name":"Rafael Viñoly","type":"person","confidence":0.95},{"name":"SHoP Architects","type":"organization","confidence":0.95},{"name":"Midtown Special Zoning District","type":"concept","confidence":0.9},{"name":"air rights","type":"concept","confidence":0.85},{"name":"Fifth Avenue","type":"location","confidence":0.8},{"name":"supertall skyscrapers","type":"concept","confidence":0.85},{"name":"Steinway Tower","type":"location","confidence":0.9}],"classification":"analysis","language":"en","confidence":0.85,"provenance":{"model":"claude-opus-4-6","tool":"@stacklist/mcp-server@2.0.0","confidence":0.85,"timestamp":"2026-06-24T16:24:50.855Z"},"token_counts":{"approximate":2594,"cl100k":2064},"content_hash":"sha256:2eef4d634806a4e771fda2233477a3e3d1976fa7c5857cd5051dedeba8e4e27c","acp_version":"0.2","body_available":true,"body_tokens":2594,"visibility":"public","agent_accessible":true,"status":"final"},"_links":{"self":"/api/public/card/7d755e94-fd07-448b-894f-a2c3d6b2f91a.json","html":"https://stacklist.com/card/7d755e94-fd07-448b-894f-a2c3d6b2f91a","md":"/api/public/card/7d755e94-fd07-448b-894f-a2c3d6b2f91a.md","stack_json":"/api/public/stack/6e73dd3f-e104-4865-a9b1-5ded5c70e4ae.json"}}