If you need to clear all of your existing finance in order to be able to borrow enough to purchase your new home, should your house sell for less than �113,000 you could approach Northern Rock, or Mortgage Express both of whom offer mortgages for up to 125% of the property value. For example, if you were buying for �150,000 but needed to clear an extra �10,000 of debt, you could perhaps borrow �160,000. Have a read on N Rock's website about their "Together" mortgage. Be aware though that unless you put down a deposit on your new house the interest rate you pay is likely to be significantly higher... and whatever you do don't choose a mortgage with "Higher Lending Fees" (used to be known as Mortgage Indemnity Premium / Guarantee) as this is money for old rope as far as you're concerned.