When I bought my flat, over ten years ago, my mortgage was £70k and then cost me about £450 a month which felt comfortable (interest rates were much higher then.) I inherited some money and was able to pay it off but now we need to upsize and houses are SO much more expensive than flats (ie in proportion to the actual extra space your'e buying...) At the moment we could easily afford a very big mortgage of more than £300k (they seem to dish out much more these days - used to be three times salary didn't it?) - but of course if and when interest rates rise we could be totally scuppered if we did that. So, what do you think is a sensible amount in ratio to earnings and what's the best way to plan for the future? it's so tempting to go for a big mortgage while interest rates are low, so I suppose I'm inviting you to caution me otherwise!