Im almost finished a self build but I will be short approx 12K because I went for slates instead of tiles and insulated the house within a inch of its life.
I'm wondering what are the costs involved with a top-up application, legal fees, does the house have to be re-valued again and are there any penalties ?
They might possibly do it as an unsecured loan which wouldn't involve legals but it's probably more likely that your solicitor will need to be involved. KBC seem to be skint at the moment though, I recently looked for a mortgage of 50k on a house worth 375k with a 3 year rental agreement in force but they came back with some ridiculous excuse why they couldn't do it. Tough times! I'm sure things aren't so bad that they can't stretch to 12k for you.