I did the mortgage affordability calculator on the Nationwide website, which suggested I could borrow up to £130k. I filled out the form for a Decision in Principle and they've offered me £80k! I know there are a lot of factors that can affect this (especially credit score) but I'm pretty much a "perfect" applicant. My credit score is right at the top end and always has been, I've got no dependents or unusual regular expenses, and I've actually been overpaying my current small mortgage for years. Been in my job for almost a decade. So I can't work out why I don't qualify for the full £130k, or at least almost all of it! I totally understand that the calculator shows a MAXIMUM, but I can't imagine who could ever qualify for that if I can only get £80k when I couldn't be much of a lower risk. Any ideas?