FAQ, the housing benefit thing isn't quite right.
Go to the rent service and use their calculators.
1st is bedroom calculator. Basically, 1 room for you, and 1 room for every 2 children regardless of sex under 10, or if over 10 then one room for any 2 children of same sex.
2nd is the LHA finder. Select your local authority, and select the number of rooms you are entitled to. Then it will tell you what the ceiling rent for Housing Benefit is in your area for the size of house you are entitled to.
Then, if you can find a property that is bigger than they say you need, within the budget that is set for you, that is up to you. If your rent is below the LHA, they let you keep a £15 per week bonus.
So, for example, the ceiling rent is £150 per month, but your rented house is £130, they would assess you as having a rent of £145 to give you a bonus.
Housing benefit is decided by giving you an allowance of income for you, and each of your children. Any excess income above this figure is deducted at a rate of 60%. So, an excess of £100 per week means you would get £60 deducted from your maximum housing benefit.
So, go to www.entitledto.co.uk and type in your details, using the LHA you get from the rent service website. Then entitled to will give you a projected figure that you will receive in housing benefit.