In a statement issued today, the mayor's office said that Blakeway - formerly Johnson's housing adviser - had been appointed deputy mayor for housing, land and property. The statement added that Blakeway would be responsible for "driving forward investment in housing and regeneration".
The statement added that Sir Edward Lister "will remain as chief of staff and deputy mayor for planning, where he will deliver the mayor's commitment to cut council tax, and continue building on work to reduce waste and achieve value for money".
Meanwhile, Tory London Assembly member Kit Malthouse has been appointed deputy mayor for business and enterprise. He will "spearhead plans to boost jobs in the capital, help create 250,000 new apprenticeships and continue to attract investment to the city", the statement said.
Johnson said: "It has never been more vital to do everything we can to boost growth and get people into work. That is why I'm putting jobs and growth at the heart of my mayoralty - focusing our efforts on driving London's economy forwards, out of the recession, investing in our infrastructure and securing Londoners' futures."