Site investigations, geotech reports, foundations, retaining walls and slope stability, delivered by geotechnical engineers who know Auckland's ground, from the Waitematā Group to the volcanics.
Gibb Ritchie is an Auckland geotechnical consultancy led by two chartered principals. We work with homeowners, architects, developers, civil engineers, contractors and councils, on everything from a single dwelling to large subdivisions and infrastructure.
Nine core services that take a project from the first site walkover to final sign-off.
01Hand augers, boreholes, CPTs and test pits to find out what is under your site, so design and consent decisions rest on real ground data.
02Clear, council-ready reports for building consent, resource consent and property purchases, written to be read and accepted.
03Geotechnical advice from feasibility and resource consent through earthworks to 224(c) sign-off, so your subdivision keeps moving.
04Shallow and piled foundations designed for expansive, soft and sloping ground, not generic details copied from a template.
05Retaining wall design and slope stability assessment, from timber pole walls to slip remediation.
06Earthworks specifications, fill testing and certification, from building platforms to full subdivisions.
07Seismic site class, liquefaction and lateral spread assessments that give designers and councils the numbers they need.
08Site inspections, testing and PS4 sign-off, so what gets built matches what was designed.
09Independent peer review and expert evidence for disputes, councils and consultants, clear enough to stand up to scrutiny.
Architectural or scheme plans, and any existing reports.
We review geology maps, the NZ Geotechnical Database, council records and historic aerials.
You get a clear scope, fixed fee and programme before any work starts.
Fieldwork with minimal disruption, then clear findings and practical recommendations.
We answer council RFIs and support you through design and construction.
You get a clear, fixed scope and fee up front. Prefer to talk? Call 09 218 6915 or email info@gibbritchie.co.nz.
Based in Takapuna and working across the Auckland region. Choose your area to see the ground conditions we usually find there.
