… and, if you were here in the US I'd advise that the interest rate isn't equivalent to the actual Annual Percentage Rate (APR). The APR takes into account not only the interest rate but also points, broker fees, and certain other credit charges that you may be required to pay, expressed as a yearly rate. These "fees" are rolled into the mortgage and you pay for them over the life time of the mortgage and so they add additional costs to the actual interest rate you've been quoted… Maybe they do things differently in the UK.