this was taken from raf site.
Accommodation on base for married couples, people in Civil Partnerships and families
To qualify for Service Families Accommodation, you need to be married or in a Civil Partnership and due to be on the same base for a minimum of six months. The property will come with up to four bedrooms (based on the size of your family, except for Warrant Officers, who are allowed four-bed quarters as standard). To give you an idea of how much rent you pay, a furnished two-bed property would be around £150 to £280 a month. They can vary a lot in age and condition but we’re always improving and, where necessary, modernising places