The East Wing of the White House was first built in 1902 during President Theodore Roosevelt’s administration.

Key timeline

  • The East Wing was constructed in 1902 as part of a major reorganization of the White House complex.
  • It was significantly enlarged and rebuilt into a larger two‑story structure in 1942 under President Franklin D. Roosevelt to provide more working space and to cover the new underground bunker.
  • The wing stood in that general form until it was demolished in 2025 to make way for a new White House ballroom project.

Quick Scoop

  • Original construction date: 1902
  • Major expansion: 1942
  • Demolition for new ballroom: 2025

So if you are asking strictly “when was the East Wing of the White House built,” the historically recognized construction date is 1902 , with its familiar modern form largely dating from the 1942 expansion.

Information gathered from public forums or data available on the internet and portrayed here.