Minimum stay of one month in the town where the marriage will take place in France: Proof of residence will be required
Minimum age of 18 years old for a man and 15 years old for a woman.
The future husband and wife must give their consent: Minors under 18 years of age must produce a written consent of both parents or their legal guardian. If the parents or guardians are not resident in France, their signature should be witnessed by a French Consular Officer.
The future husband and wife must not have any close family relationship or ties with each other.
Birth certificate : It will be necessary to provide the "certified copy of an entry" (the full version with the names of the parents) with a translation. It is necessary to go through a British translator then with the Legalisation Office of The Foreign and Commonwealth Office in London (see www.ambafrance.org.uk)
Prenuptial medical certificate: this certificate can be obtained from the following organisations: a GP in France
A solicitor's certificate : this certificate is necessary if the future couple has entered into a marriage contract. In the absence of any contract, the spouses will be subject to the law of the country in which they settle their first place of residence, according to the Hague Convention of 14th March 1978. However, since this appreciation can be subject to variations, it is recommended to refer to that convention for further details.
Certificate of law = certificat de coutume. This certificate can be obtained from either the: Consular Division - Foreign and Commonwealth Office
For further information and contact details contact the Official website of the French Government Tourist office - http://uk.franceguide.com/festivals-and-event/Getting-Married-in-France.html?NodeID=406&EditoID=81537