Geotechnical & Ground Engineering Consultants — New Zealand

Geotechnical Solutions. Built on Understanding.

Clear Ground Insight.
Confident Decisions.

GeoReach Consulting provides independent geotechnical and ground engineering advice — helping property owners, designers, and developers understand site conditions early and manage risk throughout a project.

We translate soil, slope, and groundwater information into clear recommendations that support design, consent, and construction. From pre-purchase due diligence to construction sign-off, we help you move forward with confidence.

What We Do
Geotechnical Services Across the Full Project Lifecycle
We support projects across residential, commercial, and small‑to‑medium scale infrastructure developments.
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Geotechnical Investigations

Before design or development begins, it is important to understand what the ground conditions mean for your site. We assess soil, rock, groundwater, and seismic considerations and explain their implications clearly.

  • Site visits
  • Boreholes and soil testing where required
  • Groundwater assessment and monitoring where required
  • Assessment of ground conditions and stability
  • Clear, council-ready geotechnical reports
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Geotechnical Design & Ground Engineering

Ground conditions play a key role in how structures are designed and built. We provide design services tailored to site conditions, including soil-structure interaction analysis and Producer Statements (PS1) where appropriate.

  • Foundation design input and recommendations
  • Ground improvement design and assessment
  • Retaining wall design and geotechnical support
  • Earthworks and slope stabilisation design
  • Liquefaction assessment and mitigation design
  • Groundwater drawdown and dewatering assessment
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Slope & Land Hazard Assessment

When a landslip occurs, the consequences can be devastating — for people, property, and your project. We provide rigorous slope stability assessments and land hazard evaluations, giving you clear, actionable advice to protect your project, meet consent requirements, and manage liability with confidence.

  • Landslip and slope stability assessments
  • PC120 landslide hazard risk assessments
  • Natural hazard reporting
  • Geotechnical reports for planning and consent applications
  • PS1 geotechnical sign-off for slope-related design
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Ground Settlement & Movement Assessment

Ground movement and settlement can affect existing buildings or proposed developments, even on relatively flat sites. We assess causes and potential impacts, providing clear advice on risk and remediation options.

  • Ground settlement assessments
  • Assessment of movement affecting foundations or structures
  • Identification of likely causes of movement
  • Advice on mitigation or remediation options
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Construction Support & Certification

Geotechnical involvement during construction helps confirm works are consistent with design assumptions and consent conditions. We cover both earthworks monitoring and building construction inspections.

  • Earthworks monitoring, testing and certification
  • Geotechnical Completion Reports (GCR)
  • Foundation and subgrade inspections during building construction
  • Producer Statements — Construction Review (PS4)
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Property Due-Diligence & Pre-Purchase Advice

Understanding ground-related issues early can prevent unexpected costs or limitations later. We provide concise assessments identifying potential geotechnical constraints and what they mean for development or future works.

  • Pre-purchase geotechnical appraisals
  • Desktop and site-based assessments
  • Clear risk summaries for decision-making
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Independent Review & Expert Services

Sometimes a project requires an independent set of eyes — whether for regulatory compliance, council requirements, or simply the confidence of a second opinion. We provide independent geotechnical review of reports and designs prepared by others.

  • Independent peer review of geotechnical reports and designs
  • Producer Statement — Design Review (PS2) sign-off
  • Review of retaining wall, foundation, and earthworks designs
  • Independent assessment for council or consent purposes
  • Second opinion on geotechnical risk and recommendations
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Stormwater & Wastewater Assessments

Many sites require engineered on-site stormwater or wastewater solutions, particularly where public services are not available. We assess soil soakage capacity, site constraints, and regulatory requirements.

Delivered in partnership with trusted specialist consultants — we coordinate the process on your behalf, so you have a single point of contact.

  • Stormwater soakage and detention assessments
  • Wastewater disposal evaluations
  • Supporting documentation for consent applications
Why Work With GeoReach
Our Approach Makes the Difference
01

Clear, Practical Reporting

Written for real-world decisions, not just compliance — without unnecessary technical noise.

02

Cost-Effective, Site-Specific Solutions

We scope our work to what your site and project actually require — no unnecessary investigation or design.

03

Direct Engineer Involvement

Direct access to the engineer responsible — not delegated to a junior or lost in a queue.

04

Risk-Aware Approach

We identify issues early to avoid costly changes later — keeping your project on programme and within budget.

05

Council-Ready Documentation

Aligned with current NZ consent requirements including Auckland Council Plan Change 120.

Practical Advice for Every Project

We work with people who need clear, reliable ground advice to move projects forward with confidence. From early planning and site selection through to design, consenting, and construction, we provide practical geotechnical guidance tailored to the needs of each project.

Whether you're a homeowner planning a new build, an architect developing a design, an engineer assessing site conditions, or a developer managing a larger project, our role is to help you understand the ground beneath your project and make informed decisions.

Property owners & homeowners
Architects & building designers
Structural & civil engineers
Property developers
Project managers & builders
Real estate investors & buyers
Local authorities & planners
Ground Engineering Built on Experience

GeoReach Consulting was founded on a straightforward principle: that geotechnical advice should be clear, practical, and genuinely useful — delivering the right level of investigation for your project without unnecessary complexity or cost.

Our work is led by a Chartered Professional Engineer (CPEng) with extensive geotechnical experience across New Zealand and internationally. From residential builds on challenging sites to complex commercial and infrastructure developments, we bring real breadth of experience to every job, regardless of size.

Whether you're a homeowner trying to understand what the ground means for your build, or a developer managing a complex site, we're here to help you move forward with confidence — quickly and cost-effectively.

CPEng
Chartered Professional Engineer — lead on every project
NZ & International
Experience across New Zealand and overseas
Residential → Infrastructure
Full project scale range
PS1, PS2 & PS4
Producer statements across design, review and construction
PC120 Ready
Auckland Council Plan Change 120 compliant reporting
Insights & Updates
From the GeoReach Blog
Technical guidance and industry updates — written clearly for property owners, designers, and developers.
Technical Guide
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12 May 2025·5 min read

What Is a Geotechnical Report — and When Do You Actually Need One?

If you're planning to build, subdivide, or develop in New Zealand, there's a good chance someone has mentioned a geotechnical report. But what does it actually involve?

Industry Update
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3 Apr 2025·4 min read

Auckland Council Plan Change 120 — What It Means for Your Property

PC120 has significantly changed how slope and land hazard risks are assessed in Auckland. Here's what property owners and developers need to know.

Frequently Asked Questions
Common Questions

Geotechnical reports are commonly required for building consent, subdivision, earthworks, retaining walls, and development on sloping or variable ground.

Yes. Our reports are prepared to support council review and integrate with architectural and structural design. We coordinate with the wider project team to ensure our advice is practical and aligned with consent requirements.

Yes. We provide inspections, monitoring, and certification throughout the construction phase — including Geotechnical Completion Reports (GCR) for earthworks and Producer Statements (PS4) for building construction.

No. We assist with everything from individual residential sites to larger development projects. Our approach is to provide practical, site-specific advice regardless of project scale.

Turnaround times depend on scope and site complexity. For small reports, we aim to deliver within 10 business days — we'll confirm the exact timeframe with your quote.

A Producer Statement (PS) is a certification document issued by a chartered professional engineer confirming that design or construction work meets relevant standards. PS1 covers geotechnical design; PS2 covers independent design review; PS4 covers construction review. Councils commonly require these for building consents involving foundations, retaining walls, and earthworks.

Get In Touch
Start With Confidence

If you'd like to discuss your site or project, we're happy to help. GeoReach Consulting operates across New Zealand — get in touch to discuss your requirements or request a consultation.

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Email
info@georeach.co.nz
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Location
17/3 The Avenue, Albany, Auckland 0632

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