The price seems typical for the area. It's not necessarily high crime, just unfashionable.
I've lived in a north facing back to back and never noticed any issues with lack of light and it was easy to sell when the time came.
I certainly wouldn't buy it just because it's cheap, because it might not be. If it was in Burnley or Middlesborough, you could knock at least £10k off the price.
With a £30k deposit and a full time job in a nearby city, I'd look to buy there, even if it means paying a slightly higher price - if that city is Leeds or Halifax, you could get a similar house in a decent enough area for not that much more and certainly affordable.