More than 60 homes have been repossessed by Enfield Borough Council and Enfield Homes in the past year after cases of tenancy fraud.
And the council and housing group expect to seize 75 properties between 2014 and 2015 as they crack down on illegal subletting and fraud.
Councillor Ahmet Oykener, Enfield Council’s cabinet member for housing, said: “I am delighted to hear that so many houses, which have been let illegally or fraudulently, have been repossessed.
"People who sublet council properties cause misery as it ends up with them losing their right to council property and the unfortunate tenant being made homeless.
“Council housing is scarce, and we need to ensure that every single property we have goes to the right person and is used as a home for a family in need, not to line a fraudster's pocket.”
Cllr Andrew Stafford, cabinet member for finance and property, said: “Those who defraud the council of housing or vital funds need to be punished. It is gratifying to know that so many people who thought they would get away with housing fraud have been caught and lost their right to a home.
“Everyone looking to rent a property must take care, especially when looking online. Go to a reputable letting agent, and check out your facts about a property or it could end up with you losing your home and deposit.”