Coastal hazards and resilience

Working towards resilience - coastal hazards in Porirua

The coastal environment is constantly changing as the shoreline moves and sea level varies. These natural changes that occur at the coast become a hazard when they threaten human life and property.

Coastal erosion and coastal flooding are the main coastal hazards in our City. Coastal hazard risks will be further exacerbated in the future by rising sea levels and increased frequency of damaging or disruptive weather patterns as a result of climate change.

We want to manage the risk from coastal hazards in Porirua and improve the resilience of our communities, now and into the future. 

What are we doing to manage the risk of coastal hazards in Porirua?

Porirua City Council is undertaking a full review of the District Plan. The District Plan tells us what we can and can’t do with our land. It makes rules about where we can subdivide, what activities we can do and where we can do them. For more information visit our District Plan page.

As part of this review, the government requires us to address a lot of things to keep our communities safe and to protect the local environment.  This includes a requirement to identify coastal areas that could be impacted by coastal erosion and flooding over the next 100 years, and to appropriately manage these areas. 

Through robust research and consultation with the community, we want to ensure that the District Plan helps us to build resilience in Porirua to coastal hazards. 

We have engaged the Focus Resource Management Group to help us to understand the coastal hazard risk in Porirua.  Principal members Jim Dahm and Bronwen Gibberd have a great deal of experience with the assessment and management of coastal hazards in New Zealand, and a long history of consultation with communities. 

Utilising their experience, and local knowledge from those living next to the coast, we are now seeking to consult with those affected by coastal hazards in Porirua. 

How will we consult with the communities in Porirua?

We held a series of coastal hazard workshops with the community in August. These workshops were opportunities for us to provide information about coastal hazards as well as hear from the community about their experience and knowledge.

Following the first round of workshops we are looking to hear more about local knowledge of our coastline as well as discussing how we might manage these identified hazard risk areas in the future. The more input we can get from the community the better the outcomes will be.

Coastal hazards community workshops - round 2

The community workshops below are targeted for each coastal community. We hope to see you there to discuss your local coastal area:

Community Location Date Time
Plimmerton Plimmerton Pavilion Hall, 9 Sunset Parade Saturday 10 November 9.30am - 11.30am
Paremata & Golden Gate Paremata Boating Club, 110 Paremata Rd Saturday 10 November 12.30pm – 2.30pm
Pauatahanui Pauatahanui School, 12A Paekakariki Hill Rd Saturday 10 November 3.30pm – 5.30pm
Titahi Bay Titahi Bay Surf Club, 7 Toms Rd Sunday 11 November 10.00am - 12.00pm
Pukerua Bay St Marks Church, Rawhiti Road Pukerua Bay Sunday 11 November 1.30am - 3.30pm
We need your help!

Your local knowledge and views are essential to building a thorough understanding of coastal hazards in Porirua. We are interested in changes anywhere on the Porirua Coast and Harbour. Any information you can provide will be helpful and appreciated including:

  • any observed shoreline changes over the last 50-100 years.
  • how your property or the local coast been affected by erosion or flooding.
  • any old photos, early descriptions, old maps, etc.
  • any information on past coastal storms and their impacts (e.g. photos or observations of erosion damage and sea flooding).
  • people or groups who may have useful information (e.g. long-term residents, local historians).

Please send any questions and information to