Richard Jackson House

The Richard Jackson House is a historic house at 76 Northwest Street in Portsmouth, New Hampshire. Built in 1664 by Richard Jackson, it is the oldest wood-frame house in New Hampshire. It was designated a National Historic Landmark in 1968. It is now a historic house museum owned by Historic New England, and is open two Saturdays a month between June and October.
Richard Jackson was a woodworker, farmer, and mariner, and built the oldest portion of this house on his family's 25-acre plot, located on an inlet off the Piscataqua River, north of Portsmouth's central business district. Jackson's house resembles English post-medieval prototypes, but is notably American in its extravagant use of wood. The house as first built consisted of a two story structure with two rooms on each floor, flanking a massive central chimney. Not long afterward, a leanto section was added to the rear of the house, which slopes nearly to the ground. Further single-story additions were made to the gable ends of the house, probably c. 1764.

Wikipedia