Subsidence and ground movement are among the most serious threats to building integrity. In Melbourne, these issues can be triggered by natural soil processes, tree activity, or nearby construction. Understanding subsidence helps property owners take appropriate protective action.
What Is Subsidence
Subsidence occurs when the ground beneath a building sinks or compresses, causing the structure above to move downward. This differs from settlement, which is the natural compression of soil under the weight of a building over time. We connect you with experienced engineers who diagnose and document subsidence issues.
Causes of Ground Movement
- Nearby excavation removing soil support
- Dewatering lowering the water table and causing soil consolidation
- Reactive clay soils shrinking during dry periods
- Tree roots extracting moisture from foundation soils
- Leaking underground services eroding soil
- Historical fill material consolidating over time
Signs of Subsidence
Common indicators include diagonal cracking in walls, doors and windows that no longer close properly, uneven floors, and gaps appearing between walls and ceilings or floors. In severe cases, visible tilting of the building may be apparent. Read about identification in our subsidence articles.
How This Relates to Your Property
If construction activity near your property could trigger subsidence, documenting your property’s condition before works begin is essential. A dilapidation report creates the baseline needed to prove any construction-related ground movement. Use our contact form to arrange an assessment. Estimate costs with our cost calculator.
Get Professional Advice
If you need a subsidence assessment in Melbourne, get a free quote today. We connect you with qualified building surveyors and structural engineers. Visit our about page for more information.