We just went through a period of low interest rates. Housing prices were in bubble territory. People could afford to get a mortgage so bid the prices up. Lots of stories of bidding wars in desirable area.The key to lower housing prices is to have lower interest rates. If he keeps hiking it's going to go down as one of the most epic policy mistakes of all time.
Higher interest rates means you have to drop the price of your house if you want to sell it.
If you can't renew your mortgage then you'll have to sell, more downward pressure.