Bridging the gap between field operations and engineering outcomes.
Construction. Compliance. Solutions.
QLD
Based & Operating
Civil
& Residential Projects
Fast
Turnaround Times
Field
Proven Experience
EST. QLD, AUSTRALIA
About Coastal Geo
Geotechnical consulting built on real construction experience.
Coastal Geo Consulting exists to build confidence in the ground beneath every construction project. We put experienced industry professionals at your fingertips to solve challenges, build clarity and achieve compliance specifically for your site, your project, your needs.
We specialise in geotechnical investigation & reporting, earthworks testing, construction quality assurance and project coordination. Our approach bridges the gap between field operations and engineering design — providing advice that is technically sound, clearly communicated and immediately actionable on site.
Field-Focused Approach
We work from the ground up — literally. Our recommendations are grounded in practical field observation, not just desktop analysis.
Clear Communication
Technical clarity without the jargon. We deliver reports and advice that builders, engineers and project managers can act on immediately.
Construction Knowledge
Our team understands how earthworks are built, not just how they're designed. That practical insight shapes every recommendation.
Data-Driven Outcomes
Every investigation and test is conducted to current Australian Standards, with results calibrated to real project conditions.
Our Services
Technical capability across the full project lifecycle.
Delivering clear insight, practical recommendations, and professional support for construction planning, conformance and long-term stability for your project.
Site Classifications (AS2870)
Comprehensive site classification assessments for residential and commercial developments in accordance with AS2870. We determine reactivity, bearing capacity and foundation recommendations tailored to Queensland soil conditions.
Wastewater Investigations (AS1547)
Percolation testing and site assessments for on-site wastewater management systems in accordance with AS1547. We provide soil absorption data and recommendations for septic and advanced treatment system design.
Geotechnical Investigations (AS1726)
Subsurface investigation programs including borehole drilling, test pitting and in-situ testing. We characterise soil and rock conditions to inform design, risk assessment and construction planning.
RPEQ Certifications
RPEQ-signed certification and reporting for geotechnical investigations, site classifications and foundation recommendations — satisfying statutory, council and contractual obligations across Queensland.
Footing & Slab Designs
Engineer-designed footing and slab solutions for residential and commercial structures, informed by site classification data and soil conditions to ensure compliant, cost-effective foundation systems.
Hydraulic Conductivity Testing
Field and laboratory hydraulic conductivity (permeability) testing to characterise soil drainage behaviour for wastewater design, stormwater management and earthworks assessment — conducted in accordance with AS1547 and relevant geotechnical standards.
Outsourced Testing
Where specialist testing falls outside our direct scope — including compaction testing and laboratory analysis — we coordinate and manage trusted third-party NATA-accredited providers on your behalf, ensuring seamless delivery and quality-assured results.
Construction QA
Independent quality assurance oversight for civil and building construction projects. We develop and implement ITP frameworks, conduct hold-point inspections and provide compliance documentation.
Project Coordination
Technical coordination between design engineers, contractors, clients and regulatory authorities. We manage geotechnical scope, scheduling and reporting to maintain project momentum.
Acid Sulfate Soil Management
Identification, assessment and management planning for acid sulfate soil conditions in coastal and low-lying Queensland sites. We develop ASSMP documentation and monitoring programs.
Laboratory Coordination
Management and coordination of laboratory testing programs through NATA-accredited facilities. We handle sample logistics, scheduling and results interpretation — acting as your single point of contact for all outsourced laboratory work.
Civil Construction Support
Integrated technical support throughout the civil construction lifecycle. From preliminary investigation through to practical completion, we provide hands-on geotechnical guidance at every stage.
Why Coastal Geo
Built different. Built for construction.
Coastal Geo Consulting was established to deliver geotechnical services the way construction professionals actually need them — practical, responsive and technically sound.
Practical Construction Knowledge
We understand how projects are built — not just how they're engineered. Our advice is grounded in real construction experience.
Fast Turnaround Times
Construction doesn't wait. We mobilise quickly, test efficiently and deliver results within the timeframes your project demands.
Strong Communication
Clear, jargon-free reporting and direct access to your project consultant. No layers of bureaucracy between you and the answers you need.
Real Field Experience
Our team has spent years working on active construction sites. We know what works in the field, not just on paper.
Queensland Industry Knowledge
Deep understanding of local soil conditions, regulatory requirements, climate factors and construction practices across South-East Queensland.
Flexible Project Support
From single lot classifications to multi-stage subdivisions, we scale our services to match your project requirements and budget.
Cost-Effective & Efficient
Lean operations and experienced staff mean competitive pricing without compromising on technical quality or service delivery.
Ready to start?
Projects & Industries
Delivering results across every sector.
Coastal Geo Consulting supports projects ranging from single residential lots through to large-scale civil infrastructure and commercial developments.
Site Classification - SEQ
Completed Subdivision - SEQ
Residential Developments
Single lot, multi-lot and estate-scale residential projects across Queensland.
Civil Infrastructure
Roads, bridges, culverts and public infrastructure projects for councils and contractors.
Subdivisions
Greenfield and infill subdivision projects including staging and bulk earthworks support.
Roadworks
Pavement investigations, subgrade assessment and construction testing for road projects.
Stormwater Infrastructure
Pipe installation testing, trench backfill verification and drainage infrastructure support.
Earthworks Projects
Cut and fill operations, borrow pit assessment and material classification for bulk earthworks.
Commercial Developments
Retail, industrial and mixed-use development geotechnical support from feasibility to completion.
Local Government Support
Technical advisory and testing services for council infrastructure and development assessment.
Our Process
From consultation to completion.
A streamlined engagement process designed to keep your project moving.
01
Consultation
We discuss your project scope, site conditions and technical requirements to define the right investigation and testing strategy.
03
Testing & Assessment
Field and laboratory testing is completed and results are assessed against relevant standards and project specifications.
05
Ongoing Project Support
We remain available throughout construction for site inspections, additional testing, design queries and construction quality assurance.
02
Investigation
Our team mobilises to site to conduct geotechnical investigations, drilling, test pitting and in-situ testing programs.
04
Reporting & Recommendations
Clear, actionable reports are delivered with practical recommendations that your design team and contractors can implement directly.
Our Process
From consultation to completion.
A streamlined engagement process designed to keep your project moving.
01
Consultation
We discuss your project scope, site conditions and technical requirements to define the right investigation and testing strategy.
02
Investigation
Our team mobilises to site to conduct geotechnical investigations, drilling, test pitting and in-situ testing programs.
03
Testing & Assessment
Field and laboratory testing is completed and results are assessed against relevant standards and project specifications.
04
Reporting & Recommendations
Clear, actionable reports are delivered with practical recommendations that your design team and contractors can implement directly.
05
Ongoing Project Support
We remain available throughout construction for site inspections, additional testing, design queries and construction quality assurance.
Get in Touch
Start your project with confidence.
Whether you need a site classification for a single lot or geotechnical support for a major civil project, we’re ready to discuss your requirements and provide a scope of works tailored to your project.
luke@coastalgeo.com.au
Phone
04088 61788
Service Area
South-East Queensland, Regional QLD & Northern NSW
- Currently accepting new projects across Queensland & Norhtern NSW
We respond to all enquiries within 24 business hours.