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

Corsair Bay stormwater pipe replacement

The stormwater pipe and outfall structure at Corsair Bay, Lyttleton is being replaced because the existing pipe has reached the end of its service life.

30 Mar 2026

Leaf season falls once again

The crisp feel of autumn is in the air, marking the start of another busy leaf fall season for Christchurch City Council.

25 Mar 2026

Council investigating wastewater plant mitigations

To mitigate the ongoing stench coming from its Wastewater Treatment Plant, Christchurch City Council is investigating pumping a portion of treated wastewater straight to the existing ocean outfall pipe.

2 Mar 2026

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