We went to look at a property recently which ticked all the boxes for me on size, location, potential for expansion in the future. We had a look around and when we got in to the front room I noticed a crack. This was, as the agent put it, the issue. He led us out the front door and showed us the below. My suspicion is that the front steps have done this after a wet/dry two year combo, but I wanted to get the opinion of the seasoned vets and DIYers alike. Does this look from first glance like an underpinning job? Is it something we should walk away from?