Creating a small building

[rockygohard18]

Hello, it's game related and none game related..ish haha. I am looking for info on how to create a small building? I am learning blender as I go and a construction company whom site I inspect asked me to make a spinning logo for them. The spinning logo name for the company is easy money, it's adding some sort of building to the logo(it's for a presentation) that I am having trouble with. How would I go about creating a small building with windows and doors? I ask this because I also want to start creating locations for FNV,