There are no good data on the numbers of units of and people living in supported housing. However, a government review in 2016 estimated that in 2015 there were 651,000 supported homes (a room or bedspace in shared supported housing or a self-contained home) in Great Britain (85% of which are in England). The review estimated that the government spent around £3.5 billion in England per year on the accommodation element of supported housing through Housing Benefit.