Pfaffer - houses in Belfast were relatively cheap during the troubles etc but there were massive house price rises in Belfast during the property boom and as a result of the peace process/devolved govt etc (the "peace dividend").
For the most part, Belfast remains cheap compared to somewhere like London, but wages also tend to be lower so in terms of affordability that is a pretty big, fancy house on a nice street for a young family where one parent is a grief counsellor and the other a midwife.
They must have had quite a lot of help.
Or maybe Peter/Paul is not the care home boy he proclaims to be? I keep coming back to this - appreciate I am a bore. There is something about the bookshelves full of books on art etc that indicates someone who has really built a very different life for himself - but that must have been tough on a bereavement counsellor's wage. Alternatively, it indicates someone who actually comes from a background where the family had those interests and the money to fund them. Not that a child in a care home can't go on to be an artist or can't have an interest in art etc, but few care home boys become Bruce Oldfield, iykwim? The Stella McCartneys and Victoria Beckhams of this world are more common (appreciate I'm using fashion as opposed to art as an example but thought it might be easier!).
TBH, the house was one of
points for me - but again I parked it.
The other thing that niggles is the timeline. The pathologist's friend said she was attacked 9 years ago, didn't she? So was Peter/Paul already with Sally Ann when he was cruising the bars and picking up women to try to strangle - given that the daughter is supposed to be 7/8? Maybe I'm wrong about that, or maybe it is part of the storyline?