Resolving the Impact of Ground Hazards.

Considering the many and varied risks the ground poses, inevitably localised hazards will pose a great enough risk to life, the material value of an asset, its development potential or its insurability to warrant a further action. 

Less than 5% of UK Sites are identified as being at such a risk, most notably where mining hazards such as; mine entries, shallow mining and known sinkholes/subsidence (Incl. subsidence claims/damage notices) are present beneath or within the immediate vicinity of a Site. Other hazards such as utilities failure, landslides, dissolution features, coastal erosion and ground gas can also pose considerable risk to property or life. 

Numerous past and current case studies highlight how our industrial mining legacy can be the cause of ground collapse, subsidence and the development of sinkholes, resulting in substantial localised damage, disruption and loss of value to property and land across the UK. Increasingly, both insurers and banks are requesting more information, interpretation and protection prior to the agreement of a mortgage or development and where a risk to the material value of the Site is identified, a further action is required as part of the due diligence process.


Terrafirma offer a suite of further actions to ensure the client is properly informed and diligent prior to purchase, development or investment.

If a further action is required, Terrafirma have developed a unique and extensive suite of next steps, including desk studies and site walkovers alongside recommendations and referrals for Site Investigations and RICS Building Surveys, tailored specifically to the on-Site risk and the client’s needs. A further action, if required, often makes up the most integral part of the search process, providing solutions through the mitigation and/or remediation of the identified risk(s).

TerraSearch Action Suite Includes: 

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Phase 1 Desk Study:

These expert reports provide a comprehensive desk study for sites where the perceived risk is to be one that may impact life, value or development potential. The report seeks to mitigate the risk(s) or offer provision of recommendations and quotes for Site Investigations, undertaken by our nationwide network of trusted partners.

The range of reports includes:
 o    Mine Entry Interpretive Report
 o    Coal Mining Technical Report
 o    Non-Coal Mining Technical Report
 o    Combined Mining Hazards Technical Report

 o    Claims Analysis Report Claims Analysis Report                               o    Cornwall Mining Report

Site Walkover:

Terrafirma’s team of Geo-Engineers are on-hand to provide Site Walkovers alongside our Phase 1 studies, to identify, confirm and interpret risks present on-Site, allowing for the mitigation of risk or providing suitable next steps for investigations and remediation works.

Building Surveys:

Terrafirma provide bespoke recommendations based on our interpretation of on-Site risks, detailing an appropriate Building Survey in accordance with the RICS three-tiered system and your specific needs. 

Site Investigation:

Terrafirma’s network of trusted partners provide nationwide expertise in the investigation, mitigation and remediation of mining and ground hazards through Site Investigations, overseen by Terrafirma.  

Require a further action?

TerraSearch Action services are not available 'Off the Shelf', with a recommendation provided within a preceding report. In the event you or your client has received such a recommendation from Terrafirma or within another available report (Environmental Search/Coal Authority Report), please contact your search provider or us directly.