In some cases, Barclays may refuse you if you apply for a fixed mortgage offer from Barclays, as your circumstances may have changed during this period or the property you choose goes beyond the type of property Barclays might want to offer, or perhaps you would like to get a larger mortgage and Barclays simply cannot afford that loan, to evaluate their mortgage products. Home ” Mortgages ” Barclays Agreement in Principle (Tips) There are many other reasons why a Barclays agreement could in principle be withdrawn or does not necessarily serve as a complete guarantee that you can get a barclays mortgage. You must apply for an agreement in principle. It is important to state truthful information, because if you provide inaccurate information and receive a barclays agreement, there is in principle no guarantee that you will actually receive a mortgage offer, and it is even more likely, if not certain, that everything done on your mortgage discovery will be checked for accuracy before Barclays offers you a mortgage offer. A barclays deal usually lasts 90 days, but you can get an extension by requesting one from Barclays. In principle, you will need an extension of your Barclays agreement if you are buying an off-plan construction property that is not yet completed. In these cases, there are usually delays in knowing when the property will finally be available, and Barclays will not want to offer you a fixed mortgage offer if your property is not willing to be valued, as it simply cannot carry out a firm and definitive property valuation if the property is not complete. . . .