The Government has introduced legislation requiring city and district councils to produce climate adaptation plans for communities at high risk from flooding and other hazards, while putting off decisions on how the cost will be shared between central and local government.

The Beehive announced on 15 July 2026 that, for the first time, councils will be legally required to plan how at-risk communities prepare for climate change impacts (Beehive.govt.nz). The proposed law would require councils to look at least 30 years ahead and set out the likely cost of adaptation. Councils that already have adaptation plans could keep them, provided they meet the new criteria.

Climate Change Minister Simon Watts said the Government was "simply not at that point" on cost-sharing — the question of who pays for the adaptation work. He said the first step was to get plans in place. The Government has deferred cost-sharing decisions until the next parliamentary term (the period between elections, typically three years).

That delay has drawn immediate pushback from the local government sector. Local Government New Zealand (LGNZ), the body that represents councils, said cost-sharing decisions must be a priority because some councils will not be able to afford adaptation on their own (RNZ).

A regulatory impact statement — a government document assessing the likely effects of a proposed law — published alongside the draft bill estimated the cost of developing an adaptation plan could reach up to $5.1 million per council.

Wairoa Mayor Craig Little described the prospect of central government helping fund councils' climate adaptation projects as "wishful thinking." Little said climate adaptation planning was already underway in his district, involving meetings with iwi and the community. He argued that investing in climate resilience — things like flood mitigation, river management, and stronger infrastructure — must replace the cycle of waiting for disasters and then paying for recovery (Waatea News).

Opōtiki Mayor David Moore went further, saying his council "may not even survive" the new planning requirements. Opōtiki sits between two rivers at sea level, surrounded by stopbanks (earth walls built to hold back floodwater) that Moore said would not last forever. He noted two state highways run through the town and are protected by stopbanks yet receive no funding, and called on the Government to help councils protect infrastructure. Moore has declared a civil defence emergency three times in his four years as mayor due to severe weather events.

The announcement fits within a wider legal framework. Under the Climate Change Response Act, the Government must produce a National Adaptation Plan within two years of each national climate change risk assessment (Ministry for the Environment). The first National Adaptation Plan, released in 2022, committed the Government to providing guidance for decision-makers to assess and manage climate risks (Ministry for the Environment). The Ministry for the Environment says local council climate risk assessments will likely feed into the next national risk assessment, due in 2026 (Ministry for the Environment). The Ministry also says work is underway to develop a "fair and enduring adaptation framework" for Aotearoa New Zealand (Ministry for the Environment).

The broader tension here is structural. The legislation creates a new legal duty on councils without resolving who pays for the work those plans will identify. For small councils with narrow rating bases — meaning they collect rates from relatively few properties — and facing immediate climate exposure, there is a real gap between the cost of producing a plan and the cost of acting on one. LGNZ's position is that some councils will simply be unable to fund adaptation independently. The Government's approach — plans first, funding decisions later — assumes that the information gathered through mandatory planning will help shape a future cost-sharing model. Mayors like Little and Moore are signalling that the funding question cannot wait for a future parliamentary term in communities already dealing with repeated weather emergencies.

The political calculation is straightforward: requiring plans imposes a visible but limited cost on councils, while deferring cost-sharing avoids committing the Crown to a potentially open-ended financial obligation before the next election. Whether that sequencing holds will depend on whether councils can produce meaningful adaptation plans under financial pressure, and whether the next government — whatever its makeup — takes up cost-sharing with the urgency that LGNZ and exposed councils are demanding.