As above, I'm trading up, but depending on price level of the new property I don't necessarily need to sell my old one (small mortgage outstanding). As it stands I've made a mortgage application and have agreement in principal on the basis that I sell my own, but it's now looking like I can afford to buy the new house with a combo of new mortgage (circa 50% LTV) and savings without selling. Am I absolutely required to sell my old PPR in order to meet the new mortgage requirements? Or will the bank give a hoot once I can pay the balance myself? Thanks!