Abstract: A method for making a poured-in-place concrete building having a plurality of rooms includes assembling an outer form around a periphery of a floor and positioning a plurality of unitary room forms within the periphery of the floor. Each unitary room form may include a plurality of rigid panels connected together along respective adjacent sides thereof defining a closed shape with an open bottom and an open top and having a draft thereto to facilitate removal as a unit. The method may also include pouring concrete between the outer form and adjacent unitary room forms and between adjacent unitary room forms to provide outer concrete walls and interior concrete walls, respectively, to define the rooms. Further, each of the unitary room forms may be removed as a unit from adjacent concrete walls, the outer form may be disassembled, and a roof may be provided over the rooms.

Abstract: A method for making a poured-in-place concrete building having a plurality of rooms includes assembling an outer form around a periphery of a floor and positioning a plurality of unitary room forms within the periphery of the floor. Each unitary room form may include a plurality of rigid panels connected together along respective adjacent sides thereof defining a closed shape with an open bottom and an open top and having a draft thereto to facilitate removal as a unit. The method may also include pouring concrete between the outer form and adjacent unitary room forms and between adjacent unitary room forms to provide outer concrete walls and interior concrete walls, respectively, to define the rooms. Further, each of the unitary room forms may be removed as a unit from adjacent concrete walls, the outer form may be disassembled, and a roof may be provided over the rooms.

Abstract: A poured-in-place concrete building having a plurality of rooms includes a floor, a plurality of poured-in-place outer concrete walls around a periphery of the concrete floor, and a plurality of poured-in-place interior concrete walls within the outer concrete walls defining the rooms. Each of the outer concrete walls may have a progressively decreasing thickness from a lower end to an upper end thereof. Further, each interior concrete wall may also have a progressively decreasing thickness from a lower end to an upper end thereof. The building may also include a roof adjacent upper ends of the outer and inner concrete walls and covering the rooms.