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.
Bodrifty
In 1999 Fred Mustill, a local smallholder, built a reconstruction of a roundhouse at Bodrifty Farm after receiving a small grant. The task of building the replica required the shifting of granite rocks weighing several tons, felling, shaping and lashing hundreds of feet of timber, and hundreds of hours' work cutting reeds for the roof. Mustill had previously researched typical roundhouse architectural structure and surveyed other reconstructions in Cornwall. Traditional rab (granite sub soil) was used for the mortar and woods such as oak, ash, holly and hazel for the roof. Mustill was keen for the house to be showcased as an educational aid for local children and others interested in history and archaeology, and hoped it would become a registered charity, though as of August 2011 it was being used for "luxury camping".