My shed is a former pigsty the was concerted into a machine shop and greenhouse years ago and then left to rot, filled with junk. I cleaned out most of the junk and rebuilt the greenhouse. I paid for a new roof on the machine shop adn removed and replaced the rotted wood. At the same time the owner paid for the removal of asbestos and the addition of a new wall facing our lane. The machine shop is now my potting shed and the greenhouse is fully functional. It was my big project during the first lockdown and I continue to improve it.
We are renters. Original pigsty was probably built in the 1940s.