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.
Earth shelter
Typically earth sheltered structures are more costly to build compared to a regular house. This is due in part to the cost of excavating the earth, having to use structural materials in the walls and the roof which withstand greater load, and increased expense on waterproofing. Many financial institutions outright exclude financing on earth-berm homes or require this type of property to be common for the area. However, as with other types of buildings the cost of construction varies greatly. For example homes built in the style of Oehler would tend to be significantly cheaper than regular houses since he emphasizes the owner(s) doing much of the excavation and work themself and using recycled materials for windows for example.