Phil, Thanks for the maps mate, I'd often wondered exactly what had been there, if anything. Could have been just a wall.
Those old back to backs were awful, I hated living in that house, one room and a tiny kitchen downstairs, one room and a boxroom where I slept upstairs. It would have been constrictive with the other six houses there, and just 2 loos to service 9 houses. No's 3 & 4 Devon St used them too, there were 4 loo's when we lived there so had to share. I used to go over to the pub sometimes, pint and a poo.
Pudding, You're probably right, I buried a BSA 250cc frame that was twisted ina crash by the previous owner, I got the whole bike for £20, Good SS engine. Also a couple of damaged petrol tanks and anything the neighbours wanted to dump, old prams etc.
Maybe in 100 years or so Time Team will find them.