Don't forget to try housing associations too. I found a garage from a local one to me. They had hundreds on their books and waited about 4 weeks and I was very specific with my preferences. I found from online searching a number of associations all of whom barely advertised what they had.
Will do. I'm thinking a barn or outbuilding on a farm would be the best option. My only problem is I've only been in Chesterfield a few months and as such don't know many people. Going to have to ask around at work and see if anyone knows any farmers.