Brighton & Hove to be Tier 4 from Midnight Boxing Day, 26th December.
This means that you cannot leave or be outside of the place you are living unless you have a reasonable excuse.
You cannot meet other people indoors, including over the Christmas and New Year period, unless you live with them, or they are part of your support bubble.
Outdoors, you can only meet one person from another household.
Full details and list of all the rules and FAQ can be found on the UK Gov website here: