The word "crash" is always being banded round by the media. It's insane. We are not talking about a true market as such, as people will always need somewhere to live and won’t sell just because they think the value of their property will go down. Moving house is a big deal and takes a huge amount of time and expense and involves many other considerations such as proximity to schools, place of employment etc. etc. In short, it’s not a very liquid market. Of course, there will be some who will want or need to sell, especially if they are having difficulty paying their mortgages, but the likely scenario is a drying up of sales, with the majority wanting to ride out the storm, so to speak. So, with fewer properties coming on to the market, the market will not nosedive as there simply won't be a huge volume of house trading going on. The basic demand will still be there, though as UK average earnings will likely stay at their current level. There might be a few estate agents going to the wall though. Shame!

So, yes, I think there will be a market correction but, long term, "bricks and mortar" will always be a good investment. If I was in the market to buy a new house, I would hold off, not only for slightly lower prices, but also because mortgage interest rates will go up and, for the time being, getting a mortgage will be harder, as the earnings multiples will be reduced.
Warning: I am not a financial adviser. These are just my own thoughts!