Also a massive rise in family homes being taken out of the residential market and used as holiday lets/Air BNBs.
Also the rise in students going to Uni has drained the local housing stock around Unis, with family homes being converted to HMO's to house students. New buildings being built at custom built student flats instead of flats for local people wanting homes.
What's worse, is that in both cases, the lost "homes" aren't even occupied 52 weeks per year. Lots of homes are left mostly empty outside the tourist seasons and student flats are unoccupied during the Summer.
Not to mention homes left empty for years whilst the owner resides in care homes etc, never to return home, but which aren't sold until long after the owner has died - sometimes empty for 10-20 or more years.
Then all the empty/unoccupied premises above high street shops which used to be residential homes for the shop owner, but then left as storage etc as the chain stores moved in, and now completely abandoned, as is the boarded up shop at street level due to the collapse of high street retail. Again, empty for 10/20 years is pretty commonplace. Councils don't help as they've usually designated the shopping streets as "retail" so routinely refuse planning permission for change of use to residential, not to mention the "flats" upstairs not passing modern building regulations without major modification which, again, requires planning permission, usually refused.