We’re still building by the coast
While the total rateable value of exposed residential property is approximately $17 billion, $2.6 billion of that was built after 2009, according to our analysis.
Even today, local councils are continuing to grant consent for development in these immediately exposed places. The Christchurch City Council – already with one of the highest exposures to coastal hazards – has just announced a 65-home development in New Brighton, an area current modelling suggests is prone to coastal flooding.
At the same time, advice from the Ministry for the Environment suggests councils should be taking a risk-informed approach to land-use planning, and asks whether councils or investors can afford to write off these investments in future.
This guidance is not mandatory, however, and many councils do not have the resources or expertise to take a risk-based approach. Aside from the financial threat, there are the associated physical upheavals and mental health issues facing residents.
The new Strategic Planning Act (one of the three pieces of legislation replacing the old Resource Management Act) should put an end to further development in at-risk places. But this still leaves the complex financial and ethical question of what happens to existing property owners.
Simply to say these residents knew the risks when they developed and should therefore be left on their own is not an acceptable long-term, compassionate strategy. Other solutions will be needed.
Government guidance is vital
We need to be wary, however, of local communities demanding sea walls or other protections to allow them to remain. Recent research indicates such structural defences can inadvertently raise long-term risk and exposure.
A more sustainable approach proposed in Hawkes Bay involves charging ratepayers $30 a year for a coastal defence or managed retreat fund. Initially lauded as the country’s most sophisticated engagement process and strategy, it has since stalled due to councils being unable to agree which rates bill it should be on.
Another solution might be the creation of a government-managed coastal bond or insurance scheme. This would ensure the premiums paid by coastal residents stayed in the local economy to support them. Naturally, such a scheme should include conditions that limit or prevent development in risk zones.
Alternatively, New Zealand could adopt a framework for converting exposed property from freehold to leasehold, which would put time limits on occupying vulnerable properties.
The related idea of a “revolving loan program” is being discussed in California. Essentially a creative buyout scheme, this would involve councils or communities buying vulnerable properties and renting them out to pay off the loan until the property is no longer safe.
Regardless, storms like those witnessed in Wellington should remind us of the need for clear guidance and support at government level. The proposed Climate Change Adaptation (or Managed Retreat) Act will hopefully provide this guidance, but this is possibly three years away at best. With coastal development still happening, it’s clear we need it sooner.
In the meantime, those who are aware of the risks will be tempted to sell their vulnerable property to those who aren’t. That is no solution. New Zealand will still have vulnerable citizens in vulnerable places — regardless of whether or not they bought with their eyes open.