Sutton LBC chief executive Niall Bolger will leave the council by the end of the year and is set to take on the same role at Hounslow LBC.
Mr Bolger will replace Mary Harpley, subject to ratification at a full council meeting on 18 September, after she was appointed chief officer at the Greater London Authority.
Mr Bolger said his time at Sutton had been “extremely rewarding” and added he is “delighted and humbled” to be selected as Hounslow chief executive.
He added: “I’m really impressed by the ambition of Hounslow council and its partners and it will be a privilege to provide officer leadership to colleagues in the borough.”
Sutton leader Ruth Dombey (Lib Dem) said Mr Bolger, who joined the council as chief executive in 2011, should be proud of the authority’s achievements during his tenure.
“During a time of massive cuts to local government funding, Niall has helped ensure we protect the most vulnerable in our borough whilst also investing in ambitious plans for the future,” she added.
Hounslow leader Steve Curran (Lab) said Mr Bolger’s appointment followed a unanimous decision by the council’s interview panel and added he is “sure he will do a fantastic job” for residents.