House raising
House raising (house lifting, house jacking, barn jacking, building jacking) is the process of separating a building from its foundation and temporarily raising it with hydraulic screw jacks. The process is the first step in structure relocation in which the building is moved to a different location. House raising may also be a part of a renovation to build a foundation under an existing house or make a house larger by building a new floor level creating a two story house. Often employed in areas that are prone to flooding and storm damage, this process can be achieved through the use of either timber piles or helical piles. Once a house is raised and supported on cribbing, a new foundation can be constructed beneath it. After Hurricane Katrina and Hurricane Sandy large numbers of houses in parts of Louisiana, New York and New Jersey were raised to avoid future flooding.
Hall house
A significant house needs both public and private areas. The public area is the place for living: cooking, eating, meeting and playing, while private space is for withdrawing and for storing valuables. A source of heat is required, and in northern latitudes walls are also needed to keep the weather out and to keep in the heat. By about 1400, in lowland Britain, with changes in settlement patterns and agriculture, people were thinking of houses as permanent structures rather than temporary shelter. According to the locality, they built stone or timber-framed houses with wattle and daub or clay infill. The designs were copied by their neighbours and descendants in the tradition of vernacular architecture. They were sturdy and some have survived over five hundred years. Hall houses built after 1570 are rare.