Brook House opened in March 2009 and is located on the south perimeter of Gatwick Airport. It has the capacity to hold 448 adult males, on 5 separate wings that are connected by a communal corridor where facilities such as healthcare, visits, education and recreational activities are located. Built to category B prison standard, the centre experiences a higher level of long-term detention than Tinsley House. The Home Office has stated that as a general rule IRCs in the UK will not operate above 80% operational capacity.
The majority of detainees are accommodated in two-person cells. Under the new contract, detainees will receive more time to associate with each other and will be locked in their rooms from 10pm to 7am.
Approximately 45% of detainees held in Brook House are Time Served Foreign National Offenders, some of which pose challenging and difficult to manage behaviour. On average there are 60 different nationalities and 30 different languages spoken at Brook House at any one time.
Around 50% of detainees held in Brook House are removed from the UK, 30% are released into the community by way of temporary admission, unconditional release or bail. The remaining 20% of detainees tend to be short-term transfers from other IRCs or prisons, normally detainees requiring embassy interviews.