Mortgage approval

We are pending a close on a house and are still waiting to get the nod from the bank. We are planning on doing a job very different from the exsisting planning permission for the house but we are submitting costs to the bank based on this planning permission in order to malke the sale go through. Our QS has hiked up the costs to facilitate a bigger loan-we will need more though when/if our new planning permission suceeds.
Anyone forsee any problems with this eg is going back to bank a second time usually an issue? Thanks!

It's 2006 again folks!

Why don't you sit down and do proper figures for the actual job you want to do with real costs not "hiked up" costs, these kind of "schemes" always end up badly. And then go back to the Bank with the real figures, otherwise you could end up back on here in a few years complaining about the Bank giving you too much money that you can't afford to pay back.