Stormwater and drainage

Christchurch's waterways have drainage, ecological, recreational, cultural, heritage and amenity values.

Wet weather and flooding

When to get in touch with us, how we respond and what you can do.

Flooding and floor levels

Flood modelling information, along with minimum floor levels for buildings.

Stormwater policies and strategies

Policies and strategies relating to stormwater and drainage.

Stormwater and your property

Drainage plans, guidance and information about stormwater on private property.

Drainage plans for your property

Use our interactive map to see public utility pipelines and waterways.

Industrial stormwater

Apply for an industrial stormwater discharge licence.

Surface flooding reduction

Resolving surface flooding at sites that experience regular issues.


Related news

Water and roading infrastructure in the northwest is being upgraded

Water and roading infrastructure in the city’s northwest is being upgraded to make sure these essential services continue to meet the needs of our growing communities.

1 Dec 2025

Online water tool launches

Information and data about the health of Christchurch’s urban waterways is accessible to all following the launch of an online water quality tool.

28 Nov 2025

Akaroa Wharf focus of photography competition

Akaroa’s iconic wharf is set to be photographed hundreds of times over its final summer.

24 Nov 2025

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