He's not in the NE.
It's more that for someone so tight, he's happy to line a landlords pockets while losing money. Even if prices were stable, he'd at least be buying an asset. Especially when interest rates are so low.
Where is he based? The UK I assume?
It's not as straightforward as you think it is, a house isn't always an asset, especially when you're starting off, it's a liability if you're buying it with a mortgage. People getting their first set of keys thinking they own their own house, that's "worth" 10x their annual wages is one of the biggest misconceptions in the world. All they own is a 30-year debt. Just because everyone does it, doesn't mean it's correct or efficient.
The average UK house price was 215k in 2016, in May 2020 it was 230k, but with inflation that 230k should be nearer 240k if houses were tracking it. If his wages have gone up with inflation, then the average house he would buy now is actually effectively cheaper at 230k than it was at 215k. That matches what he would have paid off his "asset". If he's been renting for less than his mortgage would have been, then he's even better off.
Then with Brexit around the corner, and a delayed covid impact there could easily be a 10-20% price drop coming so that 230k could easily go below 200k. The economic forecast is bad for the UK, there are droves of people leaving and the birth rate is low (and has been low for a long time, and is miles lower than previous years which helped drive the property boom).
You should never criticise someone for saving, especially when their main reason they're saving is in line with what most investors believe (that brexit is going to cause a mess), and you also have covid that is going to amplify that.
Keeping his money in the bank was his worst choice (if that's what he's done), the saving and not buying was a sound choice (and will become evident over the next year or so).
Spending hours to save £1 on a shirt is also a bad choice.