The average interest rate for a house/construction loan in Germany from the 60'ies to 2010 was around 5% - if more or like your UK example, I guess construction or the property market in Germany would have abruptly ended. A friend of mine bought a house in Bristol in 1981/82, so I am quite familiar with the "specifics" of the British property market.
From 2014 to 2024 those finance institution gangsters - offered housing loans at an average of 1.0% for a fixed period of 10 years. What most people never realized was that due to those extreme low interest-rates - those who already possessed property - and especially property developers simply hiked up market prices by almost 100%.
Now starting from 2024 - those property prices have already dropped at an average of 25% + the average interest rate after that binding 10 years period, are now at around 3.5%, and naturally people ain't able to service these loans which increased upon a previous monthly rate by 350%!!! - therefore the banks are now "restructuring" these left to be serviced loans - with the debtor lastly ending up with a 50% increase in view of the new debtor sum - and are paying 3-4% interest.
They basically got all whacked&screwed - but If someone told them so in e.g. 2014/15 - they simply wouldn't listen.