Annexes which are used by the occupier of the main house as part of the main home, or annexes which are occupied by a relative of the person living in the main house are entitled to a 50% reduction in the Council Tax payable on the annexe.
The 50% reduction is on top of any other discount to which you or your relative may be entitled.
The form below can be completed by the occupier of the main house, or the occupier of the annexe.