In the archive, a model of a residential building (4 stores)
Export file : Obj
====================================
The model is assembled as carefully , Maximum detail, also suitable for close-up angles.
====================================
Units of measurement in millimeters.
No third party plugin or script required.
polys : 97.045
====================================
Those who work in V-Ray versions lower than 3.1, be careful, in the materials in the BRDF section there is Microfaset GTR ( GGX ), if your version is older than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward - whatever suits you best.

For Corona render, it is recommended to install a version of at least 1.5, since the glossiness of materials is configured taking into account PBR

Enjoy using and beautiful renderings!