Building on the earlier response:
If you look on Old Maps for Albany Row, Byker and then have a look at earlier maps you can see that Waller Street ran to the East from Albion Row and was level with an area called Balast Hills, which was on the West side of Albany Row; Ballast Hills is still known by that name. The most useful map I found was the 1916 1:2500 Northumberland.
Scott Street was parallel to Waller Street and to the North. Both Streets ended at the railway line at their Eastern end.
Looks like there were about twenty house in Waller Street counting both sides; shorter side to the north. They appear to have had yards at the back which probably had the coal house and the outside Netty (what we used to call the toilet). So they were not the "back to back" type where you had a front door but no way out the back without knocking a hole into your neighbours house.
You might get some photos at Newcastle Archives though I could not find any online. There may be some information in the details of the planning application for when they redeveloped the area in 1976?
looking at a current street map the place where Warren Street and Scott Street was is now the triangle formed by Albion Row, Dalton Street and St Michaels Road.