It not under priced, its offer over and if you go to recently sold a neighboring similar house just sold for £164k, other comparable small 2 bed houses in the area have sold for £170k-£180k. Some even as low as £100-120k.
There are lots of more expensive houses in the area but most aren't comparable, you cannot compare large 3-5 bed semi detached to a TINY terrace cottage.
I wouldn't buy it as its no use to me. My step-dad owned a similar house he bought when he was a bachelor before moving in with my mam though so its fine for like 1 person or maybe a couple or a minimalist family with only 1 kid. We visited occasionally and there where a couple of 1 kid families on the street but you would have to keep heavily on top of de-cluttering as theres not much space in houses like this.