Auckland's new mayor is confident the city's Council Controlled Organisations will do what he tells them to.

Wayne Brown has written to the Eke Pānuku development agency, water company Watercare, Auckland Transport, and Ports of Auckland, asking for major changes in priorities.

The letters are largely symbolic, as the mayor doesn't have direct power over the organisations' day-to-day operations.

Brown told Mike Hosking he hopes they respect the mandate he's been given by the people of Auckland.

Brown says if the organisations don't do what he tells them, he has the numbers around the council table to effect change.

The mayor will have his first meeting with Prime Minister Jacinda Ardern this morning.

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