Abstract: The invention concerns a building (1-6) provided with vertical displacement means (4-5), for moving the building (1-5) between an extended position interacting with the surroundings and a sheltered position for protection, and inversely. The vertical displacement means (4-5) comprise means forming hydraulic ballast (4), for moving the building (1-5) between said extended position corresponding to a discharge of the hydraulic ballast and said sheltered position corresponding to a filling of the hydraulic ballast (4). The building (1-6) comprises service rooms (6) implanted in the natural environment and independent of the vertical displacement means (4-5).