<P> Number One Observatory Circle is the official residence of the Vice President of the United States . </P> <P> Located on the northeast grounds of the U.S. Naval Observatory in Washington, D.C., the house was built in 1893 for its superintendent . The Chief of Naval Operations (CNO) liked the house so much that in 1923 he took over the house for himself . It remained the residence of the CNO until 1974, when Congress authorized its transformation to an official residence for the Vice President, though a temporary one . In fact, by law, it is still the "official temporary residence of the Vice President of the United States ." The 1974 congressional authorization covered the cost of refurbishment and furnishing the house . </P> <P> Although Number One Observatory Circle was made available to the Vice President in 1974, three years passed before a Vice President lived full - time in the house . Vice President Gerald Ford became President before he could use the house . His Vice President, Nelson Rockefeller, primarily used the home for entertaining as he already had a well - secured residence in Washington, D.C., though the Rockefellers donated millions of dollars of furnishings to the house . Vice President Walter Mondale was the first Vice President to move into the house . Every Vice President since has lived there . </P> <P> The Vice Presidential mansion was refurbished by the United States Navy in early 2001, only slightly delaying the move of then Vice President Dick Cheney and his family . </P>

Where do the vice president of the united states live