It seems similarly priced to other properties in the area. Maybe even overpriced.
It is somewhat "overdeveloped". It looks like they've spent way too much money on decorating it that they won't ever get back. It all looks beautiful but in reality it's just a 3 bedroom end of terrace house next to what looks like commercial premises in the photo. They probably could have bought the house next door for the price of all the work they've had done 
Being situated on Butt Lane probably doesn't help much either...