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

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

Climate Change Minister Simon Watts said the Government was "simply not at that point" on cost-sharing, and that the first step was to get adaptation plans in place. The Government has deferred cost-sharing decisions until the next parliamentary term.

That deferral has drawn immediate pushback from the local government sector. Local Government New Zealand (LGNZ) said decisions about cost-sharing must be a priority because some councils will not be able to afford adaptation (RNZ).

A regulatory impact statement published alongside the draft bill estimated the cost of simply 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 climate resilience must replace disaster recovery, and that beyond immediate financial assistance, long-term investment is needed in flood mitigation projects, river management, and resilient infrastructure (Waatea News).

Opōtiki Mayor David Moore went further, saying his council "may not even survive" to deal with the new planning requirements. Opōtiki is built between two rivers at sea level, surrounded by stopbanks 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 with protecting infrastructure. Moore has declared a civil defence emergency three times in his four years as mayor due to severe weather events.

The announcement sits within a wider statutory framework. Under the Climate Change Response Act, the Government is required to produce a National Adaptation Plan within two years of the second national climate change risk assessment (Ministry for the Environment). The first National Adaptation Plan, released in 2022, committed the Government to rolling out non-statutory 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 inform the next national climate change 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 statutory obligation on territorial authorities without resolving who pays for the adaptation work those plans will identify. For small councils with narrow rating bases facing immediate climate exposure, the difference between the cost of producing a plan and the cost of acting on one is the difference between a compliance exercise and a response that protects communities. LGNZ's position is that some councils will simply be unable to fund adaptation on their own. The Government's sequencing — plans first, funding decisions later — assumes that the information gathered through mandatory planning will inform 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 living with repeated weather emergencies.

The political calculation is straightforward: requiring plans imposes a visible but bounded cost on councils, while deferring cost-sharing avoids committing the Crown to a potentially open-ended fiscal exposure 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 composition — picks up cost-sharing with the urgency LGNZ and exposed councils are demanding.