The Government increased its contribution to the rebuild by $2 billion to $15 billion in April after revising the estimated cost upwards from $30 billion to $40 billion.
Prime Minister John Key and Canterbury Earthquake Recovery Minister Gerry Brownlee have said in the past that the council should sell off some of its assets to free up some cash to pay for its "nice to haves" in the rebuild.
The idea of the council partly selling its stake in assets, such as power company Orion, Lyttelton Port Company Ltd and Christchurch International Airport Ltd, is "incredibly logical", according to Mr Key.
But Mayor Bob Parker has repeatedly rejected those suggestions, as well as calls to increase rates, and instead prefers to borrow the money required for its share of the rebuild.