‘Serious concerns’, but Wellington City joins Tiaki Wai

Thursday, 28 May 2026

Councillor Karl Tiefenbacher warned there was no control over what Tiaki Wai could charge.

Despite “serious concerns” around the elected table, Wellington City Council has jumped into the Tiaki Wai bed ‒ avoiding likely legal action and Crown intervention in the process.

Tiaki Wai takes over from Wellington Water to run Wellington, Hutt Valley and Porirua tap, storm, and waste water from July 1 amid growing public awareness of how much it will cost Wellington homes.

Water is currently paid via rates. but this will be taken out into a standalone bill Tiaki Wai estimates will initially sting households $200-per-month, rising to $566 within a decade.

The change has been imposed on councils by the central Government’s Local Water Done Well changes, replacing the previous Government’s Three Waters legislation, which would have given more central Government funding to set it up.

“There is no easy way out of this,” said mayor Andrew Little on Thursday, as the council was about to vote on whether to join Tiaki Wai.

Council staff warned that voting to delay would open the council up to legal action from those councils who had already joined. It was also warned the council could not legally charge rates nor provide water services after July 1.

It was also warned that the not joining would put council in conflict with its own long-term plan, and likely invite Crown intervention, including a possible Crown Commissioner to take over the running of council.

A sign of the unease the whole council felt was a near-unanimous vote to an amendment by councillor Andrea Compton noting the “serious concerns” about the transfer of council assets to Tiaki Wai that had not been properly addressed in time. Only the two unelected pouiwi, mana whenua representatives, voted against it.

But the amendment that shook the room came from councillor Karl Tiefenbacher, to delay the transfer to March 1, 2027, so issues could be resolved.

There was cost and risk to the city but the risk to Wellington of not delaying was “10 times worse”, Tiefenbacher said.

The council was being asked to hand over its water assets with no control over Tiaki Wai. While rates caps were coming for councils, there were none for Tikai Wai, he said.

“Tiaki Wai can charge what it likes and we have no control,” he said.

Deputy mayor Ben McNulty dubbed the amendment “incredibly reckless” and “speed running” to Crown intervention. Councillor Geordie Rogers said it was putting the drinking water of the city at risk.

Only councillors Tiefenbacher, Tony Randle and Ray Chung voted for the amendment.

After a last-minute amendment for Little to advocate the Commerce Commission for the council to have stronger price regulation powers over Tiaki Wai, the vote to join passed unanimously.