South Lawn (White House) South Lawn (White House) The South Lawn at the White House in Washington, DC, is located directly south of the house, and is bordered on the east by East Executive Drive and the Treasury Building, and on the west by West Executive Drive and the Old Executive Office Building, and along its curved southern perimeter by South Executive Drive and a large circular public lawn called The Ellipse. Since the address of the White House is 1600 Pennsylvania Avenue NW, and the North Lawn faces Pennsylvania Avenue, the South Lawn is sometimes described as the back lawn of the White
Pennsylvania Avenue earliest streets constructed in the Federal City. The first reference to the street as "Pennsylvania Avenue" comes in a 1791 letter from Thomas Jefferson. One theory is that the street was named for Pennsylvania as consolation for moving the capital from Philadelphia. Both Jefferson and George Washington considered the avenue an important feature of the new capital. After inspecting L'Enfant's plan, President Washington referred to the thoroughfare as a "Grand Avenue". Jefferson concurred, and while the "grand avenue" was little more than a wide dirt road ridiculed as "The Great Serbonian Bog", he planted it with rows of fast-growing Lombardy