Theodore Roosevelt Renovation (1902): This renovation expanded the space by adding the West Wing, establishing it as the primary office space for the president. It also removed the Victorian-era decor that had accumulated over the years to restore the building's more classical style.
Coolidge Administration Expansion (1927): President Calvin Coolidge oversaw the addition of a third floor to the residence.
Franklin D. Roosevelt Expansion (1930s–1940s): The West Wing was overhauled in 1934, and the Oval Office was relocated. In 1942, the East Wing was added to conceal an underground bunker. And an indoor swimming pool was installed.
Harry S. Truman Reconstruction (1948–1952): Considered the most significant renovation in the building's history,
the interior was completely gutted. Only the exterior walls were preserved.
Richard Nixon Expansion (1973): A bowling alley was added.
Donald Trump Expansion (2025): A ballroom is being added to the East Wing