Abstract: A method of constructing a prefabricated dwelling on a selected lot, from at least a plurality of wall panels, symmetrical two by two with respect to a plane, each wall panel having a trapezoidal shape of which the parallel sides correspond to the vertical edges of the panel and the non parallel sides are inclined in the same direction and correspond to the upper and lower edges of the panel, and a plurality of identical roof panels between them; each roof panel having the shape of a lozenge, the wall and roof panels all having a shape-holding structural frame suitable for assembling them together in a rigid manner. According to the invention, the required foundations are provided by the selected lot itself and a base is provided to receive the wall panels directly, this base having the overall shape of the grouping of at least three regular hexagons, equal to one another and adjacent at least two by two without being in alignment.