@emmathedilemma
I bought my first place in 2003 and a more than 100% mortgage was quite readily available if you wanted money to do renovation works.
5.5x sounds great but I'd love to know what you've live off for the rest of the month unless you had another half with an income that wasn't counted for the mortgage or something like unguaranteed bonuses that they didn't consider.
You can't take one element and make assumptions about affordability.
Deposit
Length of mortgage.
Etc
I could take that out, living alone, & pay it quite happily. In fact I'd like to be able to get a higher mortgage so I can move to a better property (there's not much between what I own now & what's worth moving 'up' to.). I own a flat, I want to buy a house with a garden and off road parking, in the area I live. There not much comes up, but what does is a big jump in price. The houses priced inbetween are lacking one of those elements, or are less square footage than the flat.
So I'll be pressing the mortgage broker to push the limit as far as he can because I can afford to pay it.
(I know I'm not a FTB , but nationwide will have something for those remortgaging and it makes no difference to the 5.5x salary)