Whether you are having a religious or a civil wedding, you must apply (in person or in writing) for a marriage schedule by giving notice to the local registrar where you want to marry at least 15 days (but not longer than three months) beforehand. BNC
The conditions for entering into marriage anybody fulfilling the conditions for entering into marriage may have a civil wedding. WebC
If you have a civil wedding ceremony, you can, if you wish, have the marriage blessed in a church immediately afterwards or at some later date. WebC