President's House in Philadelphia was the third U.S. presidential mansion. Washington occupied the Philadelphia President's House from November 27, 1790 to March 10, 1797. John and Abigail Adams occupied the house from March 21, 1797 to May 30, 1800.
The Philadelphia house was located on what is now Market Street, one block north of Independence Hall (then known as the Pennsylvania State House). It had been built by widow Mary Masters around 1767, who gave it as a wedding present to her daughter Mary, who married Lieutenant Governor of Pennsylvania, Richard Penn. During the 1777–1778 British occupation of Philadelphia, the house was headquarters for General Sir William Howe, Commander of the British Army.