Subsidence, Heave & Ground Conditions
Ground stability is a primary concern for any property owner, as movement in the foundations can lead to significant structural damage and a substantial decrease in property value. Understanding the specific ground conditions in the Gloucester area is essential, as the local geology, particularly the presence of shrinkable clay soils, plays a major role in how buildings behave over time. When you are looking for an independent building surveyor, choosing someone with specific local expertise ensures that these regional geological risks are properly factored into the assessment of the property.
Subsidence versus Heave
Subsidence occurs when the ground beneath a property sinks, taking the foundations with it. This is often caused by prolonged dry spells causing clay soil to shrink, or by moisture being extracted from the soil by the roots of nearby trees. Conversely, heave occurs when the ground swells and pushes the foundations upwards, often happening after a large tree has been removed and the soil becomes saturated with water. Both issues can result in significant cracking, sticking doors, and uneven floors.
A professional house survey is designed to identify the subtle early warning signs of these issues. An experienced local surveyor will look for diagonal cracking that typically tapers in width, or signs of recent patch repairs that may be masking ongoing movement.
Professional Assessment and Next Steps
If a visual inspection during an RICS Level 2 Home Survey reveals signs of active or significant historic movement, it is vital to investigate further. We may recommend commissioning a Structural Engineer Report to diagnose the exact cause of the movement and determine if the building is currently stable.
Because the cost of resolving subsidence can be extensive, having professional evidence is key to protecting your investment. If movement is identified, obtaining an RICS valuation will help you understand the impact on the property’s marketability and price, providing a clear basis for any necessary renegotiations with the seller.