Mortgage Application - Change of address

Hi all, just have a quick query in relation to a recent mortgage application I submitted. Since the application went in, we have moved out of rented accomodation into a family members house, thus saving on rent etc. Should I inform the bank iof this or will that make my application invalid? Thanks.

Thanks for that, I have re-direct setup with An Post so will get all mail forwarded. I thought if address changed, we may have to submit new application etc?