Cottage designed by Plans.ru
Project 63-82
https://www.plans.ru/project/4101 

Information about landfills: 166 045
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For Corona render it is recommended to install a version of at least 1.5 since the glossiness of the materials is adjusted taking into account PBR
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The archive contains a library of materials for V-Ray

Who works in V-Ray version 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 – which is preferable for you