The White House is in Washington, D.C., but the original president’s residence was actually a three-story brick house in Philadelphia. According to The White House Historical Association, the site's location between two pro-slavery states led to the decision to recruit laborers from Europe to help build The White House. British troops burned part of The White House down during the War of 1812, which necessitated a significant restoration project. He designed the original White House, and he also spearheaded its reconstruction after the fire during the War of 1812. If you’re looking to send a letter to the White House (which you can do), its full address is:The White House1600 Pennsylvania Avenue NWWashington, DC 205008.