Alagnak, That thing looks really nice for the money and I have a similar area behind my 3rd stall that something like this would be great for. Not permanent so no permit needed in my City. It would function as another nice patio and covered storage for thing like a utility trailer for me and I have a bedroom window above that always made extending the garage bac an issue with roof line/truss configuration but this doesn’t loose any height with the trusses and sheds snow and water away from the house and I could always construct at a steeper pitch.
Rodwork, you might want to check what would be allowed as a “non permanent” structure in your easement as easement spaces are supposed to be easily vacated if needed.