This specific 3D model, "Modern House Low-poly 3D model 12", is an asset made available by "Unknown author".
You can download this asset for free at "Unknown platform" by following the link.
The licensing terms for this digital asset are governed by "Unknown license".
STL (Stereolithography, filesize: 137 KB), OBJ (OBJ, filesize: 184 KB), DAE (Collada, filesize: 390 KB), BLEND (Blender, filesize: 226 KB), FBX (Autodesk FBX, filesize: 110 KB), UNITYPACKAGE (Unity 3D, filesize: 440 MB)