Mayoral support - as Wayne Brown asks the Government for a super-sized payment

The Auckland mayor's asked Finance Minister Nicola Willis to consider sharing the GST take on new house builds, saying the Council's missing out on millions each year.

Christchurch and Wellington's mayors back the idea.

Political Commentator Grant Duncan says all three councils don't want to ask ratepayers for more money.

He says there's no magic money tree in the middle of the garden, and central and local government need to collaborate.