If you have a low income or on one of the ‘Main Benefits’ you will most likely be eligible for Housing Benefit to help with any Rent.
The figures of local housing allowance are different in each authority and will depend on your current income. www.london.gov.uk/rents has a London Rents Map that shows average private sector rents for different types of home across London the Outer rate. Whilst www.gov.uk/housing-benefit/what-youll-get will find your local housing allowance rate by postcode or authority.
Discretionary Housing Payments
If you are in receipt of Housing Benefit and you are getting the maximum according to the LHA but still have a short fall, you may be eligible for DHP. You can pick up a form from your Local Authority and should fill it in with the required details and shortfall. this includes “Bedroom Tax” shortfalls as well as money to tide you over until you can move to a smaller / cheaper property. Some councils can also help for a Deposit or Rent Advance through this.