During the subsequent 12 years, with Adams resident in Philadelphia first as Vice President and then as President, Abigail Adams attended to the house and farm. She greatly expanded it, adding what is now the right side of the front facade, with a fine hallway and large parlor on the ground floor and a large study above. The additions were built in the Georgian style with a gambrel roof creating a nearly full attic story. Adams returned to the house full-time in 1801 after his defeat for a second presidential term. His son John Quincy Adams also returned to the house at that time, after completing his ambassadorial term in Berlin. Further extensions to the house were made by his son, Charles Francis Adams.