Zealandia is a New Zealand-owned civil and environmental engineering consultancy specialising in three waters infrastructure, flood resilience and catchment management. Based in Tāmaki Makaurau, it delivers technically robust, modelling-led solutions for local authorities, infrastructure owners and strategic developers across Aotearoa.
Its core expertise spans stormwater, wastewater and water supply systems, with particular strength in hydraulic modelling, flood hazard assessment, hydrogeology and environmental monitoring. It integrates advanced digital tools – including InfoWorks ICM, MIKE suite, TUFLOW and GIS-based analytics – to support defensible decision-making across the full project lifecycle.
Zealandia supports capital and renewal programmes typically under NZ$5 million project value, providing services aligned with Auckland Council’s consolidated technical services framework.
Its work includes:
• Flood modelling and overland flow path analysis
• Catchment management planning and stormwater strategy
• Groundwater–surface water interaction assessments
• Environmental monitoring and compliance support
• Asset prioritisation and infrastructure optioneering
• Property-level flood resilience guidance
Zealandia is distinguished by its integration of hydraulic evidence with civil design, governance insight and carbon-conscious engineering, and its directors provide chartered-level oversight and technical quality assurance, ensuring outputs are proportionate, practical and defensible under public scrutiny.
It is committed to sustainable procurement principles, local capability building and meaningful engagement with Māori outcomes, and combines specialist technical capability with agile SME responsiveness – delivering value-for-money outcomes without unnecessary complexity.
Zealandia’s focus is simple: better infrastructure decisions through better evidence.
