The 1902 renovation during the Theodore Roosevelt administration dramatically reconfigured the ground floor. Multiple layers of rotting floor boards were removed and new flooring installed. Several new rooms were framed and finished with a finished plaster coat. A gentlemen's and ladies' lounge and guest bathrooms were created. Charles Follen McKim admired James Hoban's groin vault ceilings in the center hall. The hall was refurbished and the center hall served to connect the new East and West wings. Though the ground floor oval room was much improved and now a part of the finished living space in the house, it remained primarily a passageway not a destination.