I wish it was only a bubble. Bubbles pop eventually.
Herewith the Toad analysis of house prices, with the conclusion that prices are very unlikely to come back down permanently, and may even continue increasing.
100 years ago, most houses in the UK were not owner-occupied. They were privately rented, and a very high proportion were poor quality. The law protected landlords: a tenant who fell through a rotten floor could not sue the landlord, for example. Most people simply could not afford to purchase houses. I believe about 90% of families rented privately.
However, at this time, a change was starting to gather pace, due to concerns about urban squalor: there were various reform movements in the UK. Out in the colonies (Can, Aus, NZ, white SA), there was significant concern when urban squalor began to make an appearance. This is because those colonies attempted to be improvements on the UK. Ultimately, the mst successful solution was PUBLICLY OWNED HOUSING, particularly after the 1920s. From then through to the 70s, the proportion of houses owned publicly increased pretty quickly. All major cities in the UK had compulsory purchasing, slum clearance, and various housing schemes. This was to the extent that we now tend to consider the Victorians to be good builders. Actually, they weren't. It's just that all the bad stuff has been bowled.
Anyway. Because families could get a perfectly decent council house for an affordable rent, landlordism became unprofitable, which meant that houses weren't a particularly great income earning asset. So of course their capital value comparative to incomes decreased over time.
What's happened since the 70s? Privatisation, mass sell-offs, demolition of housing schemes without replacement, right to buy in the UK aka legalised theft from municipal councils, deliberate promotion of private ownership by successive goverments. The result is now that if you can't buy, you rent privately. So, houses are, once again, a prime income-earning asset. And - surprise surprise, their capital values have gone back up again.
Do I see any political parties advocating mass public housing schemes like in the 30s and 50s? No I don't. In fact, they seem to want to restrict any sort of social housing further. So I expect house prices to carry on going back UP, until we are back in the situation that existed 100 years ago.