Revit

Revit is good program for making plans for buildings etc. you can use bird eyes view for doing floor plans and you can also use 3D mode where you can rotate the building and build using it that way. in revit you can also add pluming and pipes to it. you can add fire protection, furniture, lighting, doors, windows, etc. i recommend revit over sketch up because you can do a lot more than sketch up. sketch up you need to make your own things from scatch. revit has everything in it already.