Abstract: A building comprising a plurality of structurally stable building cells is disclosed, wherein the cells are structured so that each forms at least part of a room of the building. Each cell has at least three planar, substantially vertical walls having an average thickness of about 1/4 inch to about 2 inches, except in areas of localized thickening. The cell has a roof in the form of a structure having substantially the structural action of a double curved thinshelled dome, which extends from the tops of the walls to form an integral concrete structure. The roof has a rise to chord ratio between 1:10 and 1:60. The roof is also about 1/4 inch to about 2 inches thick, except in areas of localized thickening. The roof and the top of the walls are joined by a continuous edge stiffening member, and a floor is joined to the bottom of the walls. Two or more of these cells are stacked one over the other in a generally vertical relationship in the building.

Abstract: A concrete cell, for the construction of buildings, made from two components, one consisting of the walls and roof and the other consisting of a floor which may be of any suitable material the principal characteristic of the cell being that the roof and wall component is made of very thin concrete between 1/4 inch and 2 inches, and that the roof of the cell is formed as a thin shell dome or cylindrical shell sprung from the tops of the walls to provide rigidity to the thin structure. The concrete is preferably reinforced, for example, with steel. Cells may be assembled together to form single or multi-story buildings in which the cell will generally be a non load bearing structural entity constituting a capsule to protect its contents and being arranged in an encompassing structure.