Ministers will target those who could afford to buy or rent a house comfortably but instead choose to live in a council house at vastly lower rents than those paid in the private sector.
For some London properties this amounts to the equivalent of someone having their rent subsidised by the taxpayer by up to £70,000 a year.
According to a Whitehall analysis prepared for ministers, there are up to 6,000 people in social housing with an income greater than £100,000.
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