A lender’s valuation checks whether the property provides enough security for the amount you want to borrow, and it can affect the loan-to-value assessment behind your mortgage offer. If the valuation is lower than the agreed purchase price, the lender may offer less, leaving you to provide a larger deposit or renegotiate the price. A valuation is not the same as a detailed structural survey, so consider arranging an independent survey as well. The outcome depends on the lender’s criteria and your circumstances, so confirm the implications with your lender or mortgage adviser and check current guidance from the Central Bank of Ireland.