Important Legal Note
Under the Marriage (Northern Ireland) Order 2003, you must give notice to marry to the registration office in the district where the marriage or civil partnership is to take place. A legal marriage ceremony must be performed either by a registered religious officiant or a registrar.
My clients usually attend the registry office a few days before their wedding day. It takes about 15 minutes and just involves repeating the registrar's words of solemnisation in the presence of two witnesses. Then your marriage or civil partnership certificate is issued and you're all set to enjoy your Perfect Day bespoke ceremony with family and friends.