Under the Housing Benefit regulations one bedroom is allowed for each of the following:  

• Every adult couple (married or unmarried)
• Any other adult aged 16 or over
• Any two children of the same sex aged under 16
• Any two children aged under 10
• Any other child
• A carer (or team of carers) who does not live with you but provides overnight care for you or your partner - From 1 April 2017 this was extended to include non-resident carers for children or non-dependants.  
• An additional room maybe allowed for a disabled child if they cannot share a room due to a disability. From 1 April 2017 this also applies where you and your partner cannot share a room due to a physical disability. Please see further down this section for more information.

In addition:

• An additional room will be allowed for a foster child or children living with an approved foster carer
• Parents of armed forces personnel who are away from home on operations will continue to have then included as part of their household