Dawber joins at the end of August and will report to chief executive George Iacobescu.
His brief will be to manage the firm’s public affairs strategy and work on issues including Ken Livingstone’s ten-year London Plan, and the proposed cross-London rail link Crossrail.
A Canary Wharf spokeswoman said Dawber would also need to liaise with bodies including the Greater London Authority, London Development Agency, London Borough of Tower Hamlets, East London Business Alliance and Thames Gateway London Partnership.
Dawber replaces Robert John who, according to the spokeswoman, quit to go travelling with his family.
Earlier this year the Morgan Stanley-led consortium Songbird Estates saw off Canadian property firm Brascan to acquire Canary Wharf after an 11-month bidding war.
Dawber will leave BP-PA after almost four years at the agency, where he specialised in transport, regional government, defence and aerospace issues. He joined in September 2000 from Westminster Strategy and is a longstanding Labour Party activist, working at the party’s headquarters during the 1992 and 1997 general elections.
He also stood as a Labour candidate in the Greater Manchester seat of Cheadle in 2001.
l BP-PA has made a number of promotions, headed by Fiona Mason, Liam McCloy and Paul Montague-Smith, who have all been promoted from account directors to directors.
Oliver Bates has been promoted to account director and George Tucker to account manager.
In addition, BP-PA has hired Gerry McFall as an account manager and Tim Rowbottom and Peter Butler as account executives.
McFall, who joins at the end of August, currently works part-time for Labour MPs John Grogan and John McFall and the Smith Institute.