Hello Steve I know the Barrack houses they sit between Vauxhall rd ,Windsor St ,Gt brook St and of course Barrack St there are a number of Courts from top to bottom with entrances on Barrack St and Windsor St the top court on Gt Brook St had one entrance in the middle. When we were kids they were pretty new I think built in the 30s we thought the people that lived in the were posh compared to us,you could use them as a short cut to pass from st to st but never dwelled to long as you were soon told to clear off down your own end. I have some photos of the opening I will find the and post later. Merry Christmas and a Happy New Year to you and your family.Derrick