It's a lidget pent. with roller door.
http://www.lidget.co.uk/
Dug out the footings for the base myself, in-laws neighbour who is a builder laid the slab (has not asked to be paid yet.).
Got the local Lidget Agent in to do the paper work, 3 weeks later truk pulls up at 6am. They start work at 8am, they leave at Lunch.
Best of all, it was my birthday so when I got home I had a spanking new garage.
TT