empty building Low-poly 3D model is available on CGTrader for $35. Original author: gilanghidayat.
BLEND (Blender, filesize: 32.2 MB), OBJ (OBJ, filesize: 164 KB), FBX (Autodesk FBX, filesize: 499 KB), STL (Stereolithography, filesize: 824 KB), TEXTURES (Textures, filesize: 26.3 MB)