Abstract: The present invention relates to a modular structural panel intended to form part of an inner or outer wall of a building, the structural panel including two façade panels parallel to each other. Both façade panels are connected by at least one first strut extending along a first direction of the structural panel and by a set of second struts extending along a second direction, perpendicular to the first direction, the second struts protruding from an edge of the structural panel by a distance D and the at least one first strut extending in a recessed manner from the opposed edge of the structural panel by a distance D? at least equal to the distance D, in order to allow the protruding parts of the adjacent panel in the building to be nested within the intermediary space between this first strut and the close edge of the structural panel.