Wellington Water is in the process of being converted into a new water company CCO named “Tiaki Wai” as part of the “Three Waters” “Local Water Done Well” reforms.
As councils in the Wellington region move to transfer water services from the Wellington Water COO to the new Tiaki Wai CCO, concerns are growing and community backlash is putting pressure on the water company.
The Water Services Strategy for Tiaki Wai was released earlier this year and the transfer of water services and infrastructure is scheduled for 1 July 2026
The estimated cost of $500-590 million to install 140,000 water meters caused much concern and outrage/ This resulted in the Wellington City Mayor declaring “I struggle to find those figures credible” and recommending that Tiaki Wai “start from scratch on a business case” according to RNZ reports.
The forecast of median water bills of $6831 per year by 2036 have been reportedly reduced to $6206 after per year in 2036 after pressure was applied to Tiaki Wai.
Critics have highlighted the lack of transparency and accountability.
There have been protests, addresses to council forums, public meetings, and media coverage of concerns with Tiaki Wai during May 2026.
Media Coverage
Mounting confusion over new water bills looming for Wellington region residents
RNZ, 23 May 2026
Half a billion dollar price-tag for Wellington water meter roll-out not ‘credible’ – mayor
RNZ, 23 May 2026
Wellington residents facing slightly lower water bills after Tiaki Wai backs down
RNZ, 29 May 2026
Guy Nunns On The Appalling Overspending By WCC On Water System
The Platform NZ, 18 May 2026
https://www.youtube.com/watch?v=cFsxde9Ke8E
Tim Brown On The Controversy Around Tiaki Wai Water Scheme
The Platform NZ, 19 May 2026
https://www.youtube.com/watch?v=29LXdwF9Eqw
Quotes
“A half-a-billion dollar price-tag for rolling out water meters in Wellington is not “credible”, says the mayor, and he expects the new water entity to start from scratch on a business case.
Tiaki Wai will manage the region’s water services from July, and says it wants to roll-out about 140,000 water meters to help people manage consumption and identify leaks.
Its draft strategy said installing meters could take between five and seven years, and may cost $500-590 million.
Questions have been mounting over that cost, as well as a set of indicative charges for water bills the entity released in March.
Wellington mayor Andrew Little told RNZ he was perplexed by the numbers.
“I struggle to find those figures credible.”
Little said Tiaki Wai had told him it was using the figures from Wellington Water as the best information it had at the time it released its draft strategy, and Tiaki Wai’s senior leaders themselves doubted the figures.
He believed the entity would go back to the drawing board on a new business case after it took over water services from 1 July, he said.
Ellen O’Dwyer, Half a billion dollar price-tag for Wellington water meter roll-out not ‘credible’ – mayor, RNZ, 23 May 2026.
“Wellingtonians are facing slightly lower water bills, as the region’s new water entity backs down on an initial set of prices in the face of public concern.
Residents are still in line for an average $6200 bill per year in 10 years’ time – a decrease from the nearly $7000 bill suggested in March.
On Friday, Tiaki Wai announced that water charges will, on average, increase by 12.8 percent across the four cities in the coming financial year, instead of the 14.7 percent signalled in March.
That means for 2026-2027, the average water charge for households could be $2377 per year – an increase of $277 per year – rather than the $2400 per year first projected. Exact figures are set to be confirmed on 16 June.
Up to July, Wellington region’s residents currently pay on average about $2100 in water charges through their rates bills.
The charges are set to increase throughout the next 10 years – to reach a forecast average of $6206 per year in 2036, instead of $6831 – a 10 percent decrease on initial projections.
Confusion, anger and concern has been mounting over the bills, as well as a projected half-a-billion dollar price-tag for water meters.
Tiaki Wai has said it has a huge amount of work to do to turn around the region’s old, leaking and failing infrastructure – including four non-compliant wastewater treatment plants.
Chairperson Will Peet said officials had listened to people’s concerns.”
Ellen O’Dwyer, Wellington residents facing slightly lower water bills after Tiaki Wai backs down, RNZ, 29 May 2026.
Further reading on this issue:
Household Water Costs in Hamilton City Projected to Triple within 9-years under New Water Company
OPINION: Serious Mismanagement and Lack of Accountability with Water Services
