I put up a 20' x 24' Versa Tube structure. I added 2 ft to the height and added side sheeting all the way to the ground. I can keep my TT and sailboat in it without being crowded.
The carport is considered a temporary building by the tax man because it is not on a concrete slab. It also is behind my 28' x 40' stick built garage. In our neighborhood, people don't complain about what the neighbors do, mainly because of the size of the lots and all of the trees. I can barely see my neighbors house.