Abstract: As same as what the game Minecraft embodies, Voxel-based Architectural Space Analysis(VASA) is a method of decomposing a model into cubes of a certain size. It transforms geometry or STL files and meshes from Revit into voxel models, which can then be used to perform a number of analyses on the 3D voxels, such as path analysis, daylight analysis, view analysis, acoustic analysis, etc. The voxel-based approach enables building space analysis to construct more complex scenarios and generate more accurate analysis results, as well as integrate voxel analysis into derivative design workflows.