Seen a house which is £100K more than the mortgage company will lend us. We'll have about £50K equity so need to borrow an extra £50K. We've only tried our current mortgage provider but wondered if anyone had any experience of this? Basically the mortgage company just asked us our income and multiplied it to get the figure but there are so many more factors to consider which a computer can't decide. We have worked it out and it is affordable to us - we just need to convince a mortgage company about this. Any experience or advice?