Hi Lorne, I think it depends on what legal structure your business is...Sole Trader, Limited Company etc. If you are a sole trader you probably wouldn't be able to get a loan, but I think you might be able to with a limited company because the liability with with the limited company and not you...I'm not 100% sure on this, but I'm actually looking in to setting up a company myself, but not needing any loans/credit. As for mortgages you can get 100% mortgages and possible more, but again depends on your status and also you will now have to deal with sub-prime lenders....check out
www.moneyfacts.co.uk. I did look in to this recently too and think that it might be possible to get a mortgage, but it would have to probably be within your budget - ie if you're paying rent then would the mortgage repayments be more than this...best to talk to your IP.