Politicians are costing taxpayers money by "huffing and puffing" and moving public service agencies out of Canberra, according the city's main property lobby group.

The Property Council says research by global real estate giants JLL Australia proves that moving government agencies out of Canberra is not a value for money proposition.

Barnaby Joyce

JLL has also scored the lucrative contract to advise the government on its most controversial move of all; the forced relocation of about 175 public servants working at Australian Pesticides and Veterinary Medicines Authority from Canberra to Armidale.

The Property Council's move comes as the opposition launches a fresh attack on the Armidale move, with Labor's Agriculture spokesman Joel Fitzgibbon again demanding minister Barnaby Joyce release the $270,000 cost-benefit analysis on the plan that his office has been keeping under wraps.