01 / PLANNINGCoP §2.9.5
GAR
Geotechnical Appraisal Report
Early planning and feasibility
Identifies ground hazards, development constraints and further investigation needs.
Geotechnical services / 02
GEOTECHNICAL
REPORTS.
Understand which report your project needs — from early feasibility and consent through design, earthworks and completion.
Explore report types ↓THE REPORT GUIDE
THE RIGHT REPORT.
AT THE RIGHT STAGE.
Different project stages call for different geotechnical documents. Explore the common report categories in Auckland Council’s earthworks and geotechnical framework.
Requirements vary by project risk, scope and consent conditions. Not every project needs every report, and some reports can be combined.
02 / PLANNINGCoP §2.9.8
GER
Geotechnical Effects Report
Resource consent and neighbouring effects
Assesses potential effects of excavation, groundwater drawdown and settlement on neighbouring properties and assets.
03 / DESIGNCoP §2.9.6
GFR
Geotechnical Factual Report
Following ground investigation
Presents factual borehole, CPT and laboratory results, separately from engineering interpretation.
04 / DESIGNCoP §2.9.7
GIR
Geotechnical Interpretative Report
Ground model and consent
Interprets site geology, geotechnical hazards and implications for proposed development.
05 / DESIGNCoP §2.9.10
GDR
Geotechnical Design Report
Detailed engineering design
Records ground parameters, design assumptions, calculations and recommendations for the proposed works.
06 / CONSTRUCTIONCoP §2.9.9
GSMCP
Groundwater & Settlement Monitoring and Contingency Plan
Before sensitive construction
Defines monitoring locations, alert levels, monitoring programme and contingency measures.
07 / CONSTRUCTIONCoP §2.9.12
GMR
Geotechnical Monitoring Report
During and after construction
Reviews measured ground movements or groundwater changes against project monitoring criteria.
08 / CONSTRUCTIONPROJECT-SPECIFIC
GDSM
Groundwater Drawdown & Settlement Monitoring Report
During dewatering, excavation and post-construction monitoring
Documents groundwater level changes, drawdown trends and measured settlement; compares results with project-specific alert and action levels, identifies exceedances and records monitoring recommendations.
09 / COMPLETIONCoP §2.9.11
GCR
Geotechnical Completion Report
After earthworks / subdivision
Documents completed earthworks, verification, as-built records and lot-specific recommendations.
10 / COMPLETIONCoP §2.9.13
SGR
Supplementary Geotechnical Report
When project conditions change
Updates earlier reports when new ground information, design changes or lot requirements arise.
PROJECT JOURNEY
FROM EARLY ADVICE
TO FINAL SIGN-OFF.
Reporting evolves as the project moves from understanding ground conditions to verifying completed earthworks.
01Feasibility & consentAppraisal, interpretation and effects assessment
02Investigation & designFactual records, ground model and engineering design
03Construction & monitoringMonitoring, observations and response to ground conditions
04Completion & certificationCompletion reports and relevant supporting statements
AUCKLAND COUNCIL FRAMEWORK
ENGINEERING REPORTS.
CLEAR PURPOSE.
These categories follow the Auckland Council Code of Practice for Land Development and Subdivision, Chapter 2: Earthworks and Geotechnical, Section 2.9 and Table 4 (Version 2.0, May 2023). The Code has a defined scope; the exact documents required for any development depend on its applicable consent conditions and risk.
Earthworks specifications, geotechnical drawings and Producer Statements (PS1, PS2, PS4) may accompany the relevant reports but are not interchangeable report types.
View official Auckland Council Code of Practice ↗NOT SURE WHICH REPORT YOU NEED?
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