Apply for an exemption for an annexe lived in by a disabled or elderly relative (Class W)

An annexe, sometimes known as a granny annexe, is exempt from council tax if a dependent relative lives there.

A dependent relative is a person:  

  • Aged 65 or over
  • Who is severely mentally impaired
  • Who is substantially and permanently disabled.

Before you start

Apply if:

  • You are the person who pays council tax for the main property

We will ask you details about the dependent relative and what that person’s relationship is to you.

Qualifying relatives:

  • Spouse, civil partner, parent, child, stepchild, grandchild, brother, sister, uncle or aunt, nephew or niece, great grandparent, great-grandchild, great-uncle, great-aunt, great-niece, great-great grandparent, great-great-grandchild, great-great uncle, great-great aunt, great-great nephew or great-great niece
  • Relationships by marriage or civil partnership (i.e. in-laws)
  • Relationships between people living together as spouses.

If an annexe is occupied by a relative who is not over 65, severely mentally impaired, or permanently disabled, you may get an annexe discount.

You will need

  • If the dependent relative is aged 65 or over, please upload evidence of the person’s date of birth
  • If the person is substantially or permanently disabled and under 65, please upload any evidence that supports this, for example copies of any relevant benefits in payment and/or evidence that the person is registered disabled
  • If the person is severely mentally impaired and under 65, we will contact you about this

Uploading supporting documents

We may ask you to upload some documents.  

  • Accepted file types: Word (docx), Acrobat (pdf), Excel (xlsx), Plain text (txt)
  • Zip files cannot be uploaded
  • We also accept photos taken on phones and tablets and the following image file types - jpeg, gif, png
  • There is a maximum individual file size per document of 50MB

What happens next

We may need to visit the property before we give the exemption.

We aim to give you an answer within 10 working days. Please check My Account for updates.

This form should take approximately seven minutes to complete.

Start form