Planning and development expert Mr McKee will head a 12 member panel to advise on the London Plan and other policies to ensure outer London realises its full potential.
The new Commission will identify up to five areas to become outer London growth hubs as well as putting together report next year, which in 2009.
The rest of the group will be announced in early 2009 along with its terms of reference.
With much of Mr Johnson’s support based in the outer London boroughs, the selection of the panel and its subsequent actions will be closely watched.
Mr McKee said: “We will work hard to identify these new hubs and the ideas that have built outer London’s successful town centres so that they can be applied across the capital.”
Other notable positions Mr McKee has held include director general of the British Property Federation. He is currently chairman of Tilfen Land and the Urban Exposure Group.