To be honest, I haven't made my mind up yet. It's not really a huge shed and, as I said yesterday, I don't really need the storage space.
I am wondering whether to maybe remove both of the sheds and erect a lean-to greenhouse in their place against the boundary wall.
I've also considered doing that in the upper garden, where such a structure would receive much more sunlight. If I were to do that, however, I would really need to get permission from the owner of the empty stone built neighbouring house, as the lean-to greenhouse would be attached to its gable end.