Patent attributes
Described embodiments relate to a transportable expandable building structure for human occupancy. The building structure comprises at least first, second and third frame modules arranged to nest with each other in a contracted position and to telescopically expand into an expanded position. One of the first, second and third frame modules is a base unit frame module that forms part of a base unit and the other frame modules are arranged to be movable away from the base unit to adopt the expanded position. The base unit has a fixed floor and is arranged to support the building structure in the contracted position to enable transportation of the building structure by road. Each of the frame modules is different in size from an adjacent one10 of the frame modules and comprises a floor portion, a roof portion and opposed side portions. Each side portion defines a same-sized modular insert region to receive modular door, window or wall inserts.