Foundation Assessment
Geo Engineering provides detailed foundation assessments across Sydney to support structural design, construction planning, and DA/CDC submissions. Our assessments evaluate subsurface conditions, soil reactivity, bearing capacity, settlement risks, and geotechnical constraints to ensure safe and compliant foundation design.
What We Offer
All investigations and recommendations follow AS 2870, AS 1726, and relevant geotechnical engineering guidelines.
Why a Foundation Assessment Is Important
A foundation assessment is essential for:
- New dwellings and extensions
- Commercial and industrial structures
- Retaining walls and basement levels
- Sloping or challenging sites
- Sites with fill, soft soils, or groundwater
- DA and CDC approval requirements
A proper assessment prevents structural issues such as:
- Differential settlement
- Cracking in slabs and walls
- Footing failure
- Excessive movement in reactive soils
- Drainage and moisture related problems
What Our Foundation Assessment Includes
Our foundation assessments provide clear, practical recommendations for engineers, builders, and certifiers:
- Site inspection and desktop review
- Borehole drilling and soil/rock profiling
- Soil sampling and laboratory testing
- Drainage and moisture control guidance
- Construction considerations and limitations
- Assessment of fill, natural soils, and rock strength
- Groundwater observations
- Settlement analysis (short term and long term)
- Footing design parameters
- Recommendations for slab, strip footings, piers, or deep foundations
- Earthworks and compaction requirements
Reports are concise, technically sound, and suitable for DA/CDC submission.
Frequently Asked Questions About Our Services
Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo.
Do I need a foundation assessment for a new house?
Yes — most residential projects require geotechnical input for footing design.
How deep do you drill for foundation assessments?
Typically 1.5–3.0 m, depending on site conditions and structure type.
Can you assess sites with uncontrolled fill?
Yes — we provide recommendations for remediation, compaction, or deep footings.
Do you provide bearing capacity values?
Yes — allowable bearing pressures are included for all footing types.
Is this different from a site classification?
A site classification focuses on soil reactivity; a foundation assessment provides design parameters for structural engineers.
Other Services
Ready Start Your Design?
Let’s bring your vision to life with services precision and purpose.