Civil

Flooding, hazards & waste

• 🇳🇿Flood Hazard Modelling Standard (GWRC)Greater Wellington Regional Council · May 2025Greater Wellington Regional Council's standard for flood-hazard modelling — a consistent, robust process for modelling flood extent and scale to inform flood defences, forecasting and land-use planning.
• 🇳🇿Flood Modelling and Mapping Guideline (Horizons)Horizons Regional Council · February 2026Horizons Regional Council's guideline (part of its flood vulnerability assessment) for flood modelling and mapping — the methods for producing consistent flood-hazard maps across the region.
• 🇳🇿Natural Hazard Provisions — GuidanceMinistry of Business, Innovation & Employment (MBIE) · OCTOBER 2023MBIE guidance on the natural-hazard provisions of the Building Act (sections 71–74) — how councils and designers address natural hazards such as flooding and erosion when granting building consents.
• 🇳🇿Preparing for Future Flooding — A Guide for Local GovernmentMinistry for the Environment · May 2010A Ministry for the Environment guide for local government on preparing for future flooding under climate change — estimating changing flood flows and adapting flood-risk management.
• 🇳🇿Technical Guidelines for Disposal to Land (MfE)Ministry for the Environment · September 2023WasteMINZ technical guidelines (for MfE) on the disposal of waste to land — the design, waste-acceptance criteria and management of landfills and cleanfills across the waste classes.
• 🇳🇿Understanding Waste Generation in the NZ Construction Sector (BRANZ ER82)BRANZ · October 2023A BRANZ external research report (a scoping study by AUT) on how and why waste is generated in the New Zealand construction sector — a basis for reducing construction and demolition waste.