Quick answer
Tin and clay mining searches are specific property searches important when buying in Cornwall and Devon, regions with historic mining activity. These searches identify potential risks such as subsidence and contamination from old mines. Understanding the results helps buyers and sellers manage conveyancing complexities and mortgage requirements.
On this page
- Introduction to mining searches
- Why are tin and clay mining searches needed in Cornwall and Devon?
- What do mining search reports include?
- Impact on conveyancing and mortgages
- Are mining searches required everywhere?
- How to order and interpret mining searches
- How mining risks differ in England, Wales, Scotland and Northern Ireland
- How we can help
Introduction to mining searches
When purchasing property in Cornwall or Devon, you may come across tin and clay mining searches during the conveyancing process. These searches are designed to reveal any risks linked to historic mining activities, which are common in these regions. While most properties will not be affected, identifying potential issues early can avoid problems later.
Why are tin and clay mining searches needed in Cornwall and Devon?
Cornwall and Devon have a long history of mining, especially for tin and china clay. Mining operations often left underground workings, shafts, and tunnels. Over time, these can pose risks such as:
- Subsidence: ground collapse caused by voids left after mining
- Contamination: hazardous materials in the soil or water
- Restricted land use: planning or regulatory controls due to mining heritage
Mining searches help discover whether such risks affect a property, influencing its value, safety, and mortgage eligibility.
What do mining search reports include?
Mining search reports typically provide:
- Historical maps showing past mining activity near the property
- Information on the depth and extent of old workings
- Details of known mine shafts or tunnels
- Risk assessments about subsidence or contamination
- Recommendations on further investigation if needed
The reports help solicitors advise buyers or sellers on appropriate precautions or insurance.
Impact on conveyancing and mortgages
Some mortgage lenders require a tin and clay mining search when the property is in Cornwall or Devon to assess lending risk. A search showing a high risk of subsidence may lead to:
- Mortgage refusal or additional conditions
- Higher insurance premiums for buildings insurance
- Further technical surveys or expert reports before completion
This makes mining searches a useful part of risk management during buying a house or remortgaging in these areas.
Are mining searches required everywhere?
Mining search requirements vary by location. They are most relevant in known historic mining regions like Cornwall and Devon. Properties outside these areas rarely need such specific searches. Other regions with mining risks may require different types of mining reports, for example coal mining searches in northern England or brine subsidence searches in Cheshire.
For general information about property searches, see our guide on unusual property searches.
How to order and interpret mining searches
Mining searches are usually conducted by third-party search companies on behalf of the buyer’s solicitor. Costs vary, but they are generally a small part of conveyancing disbursements.
Interpreting mining search reports may require professional input, especially if risks are identified. Your conveyancer can explain the report’s contents and suggest next steps, including additional surveys.
Key point
Mining searches do not guarantee absence of risk, only document known historic information. They are one part of a thorough conveyancing process.
How mining risks differ in England, Wales, Scotland and Northern Ireland
The focus here is on Cornwall and Devon in England and Wales, where tin and clay mining histories are common. Mining risks in Scotland or Northern Ireland may relate to different minerals or regulatory regimes. Always check searches appropriate for the specific property location.
How we can help
At Affordable Conveyancing, we provide fixed-fee, itemised quotes for residential conveyancing including handling complex searches like mining reports. Our regulated conveyancers guide you through buying or selling properties with unusual risks, helping you understand results clearly.
Get started with a no-obligation quote on our conveyancing quote page.
Frequently asked questions
What is a tin and clay mining search?
A tin and clay mining search is a specialised property search that checks for historic mining activity near a property in Cornwall or Devon, assessing risks such as subsidence or contamination.
Do I need a mining search when buying a house in Cornwall?
In most cases, yes. Because Cornwall has extensive historic mining, mortgage lenders and solicitors often require a mining search to identify potential risks before completing a property purchase.
Can mining searches affect my mortgage application?
Yes. If a mining search reveals significant risks, your mortgage lender might impose conditions, require additional surveys, or in some cases refuse lending.
Are tin and clay mining searches relevant outside Cornwall and Devon?
Generally not. These searches focus on historic mining specific to Cornwall and Devon. Other areas may require different types of mining or subsidence searches.
This guide is general information about the law in England and Wales as at the date shown above. It is not legal advice. Every property is different, so ask your conveyancer about your own situation. More in Unusual property searches explained.






