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Auckland Council’s Plan Change 120 (PC120)  introduces major changes to how land development and housing intensification are managed across the region. While much of the discussion has centered on zoning and density, one of the biggest shifts for developers and designers is in the management of natural hazards and geotechnical risk . At its core, PC120 aims to enable more housing – but only in places where it’s safe to do so. That means greater scrutiny of ground conditions,

Last month, geotechnical engineers from around New Zealand (and beyond) gathered at the NZGS Symposium 2025 in Tāmaki Makaurau (Auckland) for four days of technical sessions, workshops and field trips. The theme was “Geotechnical Horizons: Innovations and Challenges” and throughout the event the focus was clear: how our industry must evolve to meet new hazards, digital workflows and sustainability demands. In this post we’ll share key take-aways, how they relate to our work a

Timber retaining walls on a commercial construction site Keystone Retaining Walls Under Construction

A shear key excavation on a steep Auckland development site

Steep terrain cause development challanges across New Zealand

When a new land development project kicks off, the pressure is usually on to get the design moving quickly. Civil engineers and surveyors...