Ken
In the 70's we did quite a lot of work in Whitby Rd, Brighton Rd, Pembroke Rd & Newport Rd. We demolished most of the wing buildings to the houses there.
I don't recall a garage on the corner, on the one side there was a shop we did a lot of work on, opposite on the other side was about 8 to 10 garages for parking cars in. At the end of these was one garage for mechanical repairs that looked like two garages knocked into one. It wasn't very big and I don't think they sold cars.
Phil