The normal legal procedure is that the buyer notifies the Notaire, by registered letter, well before the specified period expires , that the mortgage application has been rejected.The Notaire will want to see at least one, and possibly three different rejections. In the absence of this notification the sale proceeds. Very often details of the amount to be borrowed , monthly payments,maximum rate of interest etc etc are all specified. This is to prevent the purchaser being forced to proceed , by requiring him to take a loan at usurious rates of interest. Are there any of these supplementary terms in your contract? The thing you have to remember is that when you signed the contract you agreed to buy the property. The clause is solely there to protect you in the unfortunate case where you are unable to get a loan on which you were relying to fund the purchase. Hence there is a real possibility that an inflexible vendor could require you to proceed with the sale unless you can really prove that you cannot get the finance.