You are entitled to register as an elector by means of a Declaration of Local Connection if you fall within one of the following categories:
You are currently resident as a patient in a mental hospital and would not be entitled to be registered by virtue of residence at any other place
You are currently resident at a place where you are remanded in custody, otherwise than after being convicted of any offence, and would not be entitled to be registered by virtue of residence at any other place
You have no fixed address
If you have no fixed address you can still register to vote. You will need to make a declaration of local connection to show that you are connected to and spend time at a particular place. You can only do this for one place.
If you want to register through a declaration of local connection you will need to do so under the new registration system on an annual basis. You will need to provide your date of birth and National Insurance number.