Lefcourt National Building in New York City
| Height | 153 m (503 ft) ▼ |
| Tip Height | 153 m (503 ft) |
| Floors | 40 |
| Construction Year | 1929 |
| Structural Form | skyscraper |
| Main Usage | commercial office |
| Status | completed |
| Architectural Style | art deco |
| Address | 521 5th Avenue |
| City | New York City |
| Country | United States |