Check out Office building in section cut 24ZZ40 3D model on CGTrader for $2. High-quality mesh by JindaArch.
BLEND (Blender, filesize: 11 MB), OBJ (OBJ, filesize: 6.76 MB), FBX (Autodesk FBX, filesize: 5.99 MB), MAX (Autodesk 3ds Max, filesize: 14.7 MB), DXF (DXF, filesize: 20.2 MB), OTHER (Other, filesize: 1.74 MB), DAE (Collada, filesize: 6.4 MB), STL (Stereolithography, filesize: 3.21 MB)