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.
Open building
Base building: the part of a multi-tenant building that directly serves and affects all occupants. In conventional North American practice, base buildings are constructed by speculative office building developers, leaving choice and responsibility for the reminder of the building–the fit-out - to occupants. The base building normally includes the building's primary structure; the building envelope (roof and facade) in whole or part; public circulation and fire egress(lobbies, corridors, elevators and public stairs); and primary mechanical and supply systems (electricity, heating and air conditioning, telephone, water supply, drainage, gas, etc.) up to the point of contact with individual occupant spaces. Base buildings provide serviced space for occupancy; Supports is another term for base building.