Marriage and civil partnership registration

Marriage and civil partnership ceremonies

Go to ceremonies and venues for information on a range of ceremonies available at Thurrock Register Office and other approved premises.

Convert a same-sex civil partnership into a marriage

Same-sex couples can convert a civil partnership into a marriage in England or Wales.

You can convert your same-sex civil partnership into a marriage at:

  • a register office
  • a local registration office
  • a religious or approved premises where same-sex marriages are allowed – a ceremony may follow

You cannot convert an opposite-sex civil partnership to a marriage in England and Wales.

What you need

You'll need to sign a 'conversion into marriage' declaration. Make an appointment with the superintendent registrar at Thurrock Register Office, below.

You'll need:

  • your original civil partnership certificate
  • your ID – we can advise you on what ID to bring to your appointment

You'll get a marriage certificate, dated when your civil partnership was formed.

Converting with a ceremony

Contact a registered venue to book a date for your ceremony.

You'll also be able to have the ceremony at venues where same-sex couples can get married.

You can discuss the wording you want during your ceremony with the person conducting it. Your friends and family can attend but you do not need witnesses.

You and your partner must sign a 'conversion into marriage' declaration. The superintendent registrar must be in attendance and also sign the declaration.

You can include up to 4 parents each on the declaration – for example mothers, fathers, step parents or adoptive parents).

How much it costs

Check our fees and charges for current details.

The cost of the ceremony will vary by venue.

Contact us

Contact us to make an appointment, below.

Thurrock Register Office – marriages and civil partnerships
Civic Offices, New Road, Grays, RM17 6SL

: 01375 375 245

: [email protected]

Opening hours:

  • Monday to Friday, 9am to 5pm – all services
  • Saturday morning – ceremonies only

Our emergency out-of-hours contact service can be used for emergency marriages or civil partnerships for terminally ill residents.