Design supporting apparatus, design supporting method and computer-readable recording medium recording design supporting program

The present invention relates to a design supporting apparatus for enabling an operator to recognize a density of a structure at a glance for a verification of the structure density, thereby achieving efficient and accurate implementation of the density verification. The design supporting apparatus comprises a spatial shape calculating unit for calculating a spatial shape within a predetermined area of a structure on the basis of three-dimensional design data on the structure, a structural shape calculating unit for calculating a structural shape within the predetermined area of the structure on the basis of the three-dimensional design data, a density calculating unit for calculating a structural density or spatial density within the predetermined area of the structure on the basis of the spatial shape and the structural shape, and a display control unit for making a display unit display the structural density or spatial density calculated by the density calculating unit.