The house was built between 1763 and 1765 and its architecture was largely designed by Paca himself. The 2acre walled garden, which includes a two-story summer house, has been restored to its original state.The William Paca House and Garden was declared a National Historic Landmark in 1971.The original one-story office and kitchen pavilions, and their connecting hyphens, were altered in the 19th century with the house's conversion to a hotel, by a second story added to the hyphens and the west wing. These changes have since been reversed, and the building approximates its original outward appearance, both inside and out.HistoryIn 1780, Paca sold the house to Thomas Jenings, the attorney general of Maryland.Carvel HallThe house and grounds were eventually acquired by the Annapolis Hotel Corporation, and the house became the lobby and conference rooms for a new hotel constructed in the garden immediately to the rear. The hotel, known as "Carvel Hall," opened with two-hundred guest rooms in 1906. But, by 1964, a mixed-use development was proposed for the site that would have demolished the house and the hotel, putting high rises in its place.