How much are these going to affect house prices? I'm worried because my sister is about to buy (currently under offer - but it's a probate sale so is taking forever and they haven't agreed a fix yet) - and just feels like everything is properly about to tank. (She's not on here, otherwise she would be asking!). The rises that are now being projected are absolutely terrifying tbh. No one seems to be thinking these are short term rises either. If interest rates sit at - say - 5% more than they have been on a £300,000 mortgage for ten years - that's £150,000 more to pay (is this correct maths? 5% of £300,000 is £15,000 a year over ten years). It's unaffordable. And I know a LOT of people who are stretched and coming to the end of their terms and have absolutely no idea how they are going to pay the increase.