I see lately a number of requests with only a 3DWarehouse link. For your information, importing a model from Google is 10x harder than creating it from scratch. Google models are messy, have either not enough or too much polygons and can have "artefacts" than add polygons where it isn't necessary. A good request contains pictures of the building. If possible, pictures from as many angles and of the best quality possible to be used as textures. Some alternate (historical, adress, architectural) infos are a bonus. Modders with experience could add infos on what they really need.