Buying guide: Should I buy a house with…

Should I Buy a House in a Former Coal Mining Area?

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The short answer

A coalfield location is a reason to investigate, not a finding that a home is damaged or safe. Ask your conveyancer which mining search the property and lender require, and review any recommendations for a survey or specialist assessment. Our development-area screen is not a CON29M search or evidence of the condition of the building.

The real risk

Around a quarter of UK properties lie within a coalfield. Most are stable, but former workings can cause ground subsidence, and shallow or unrecorded shafts (some unmapped) pose a localised collapse risk. Mine gas (including carbon dioxide and methane) can also migrate in specific areas.

The Coal Authority is the statutory body that holds mining records and handles subsidence-damage claims. Where workings are recorded, you may be entitled to remediation, but you need the search to know what you are buying over.

Lenders in coalfield areas frequently require the CON29M search as a condition of the mortgage, so this is rarely optional in practice.

What the data reveals

Coal Authority CON29M mining search

The authoritative report: past, present and proposed workings, shafts, subsidence claims, mine-gas and grouting for the exact address.

British Geological Survey ground-stability data

Independent context on shrink-swell, collapsible and made-ground hazards alongside mining.

Coal Authority interactive viewer

Free area-level indication of whether the property sits in a Development High Risk Area.

How to check this exact address

  1. 1Ask your conveyancer whether a CON29M or another mining search is needed for the property and lender, and who should investigate any recommendations.
  2. 2Check the property's ground-stability and mining flags in a HouseCheckup report for an early, pre-offer indication.
  3. 3If subsidence is recorded, ask the seller for any past Coal Authority claim history and remediation records.

Worried about a coal mining area at a specific address?

General guidance only gets you so far. The answer that matters is about the one house you're considering. HouseCheckup pulls flood risk, ground stability, mining, planning, EPC, crime and sold-price history (15+ checks from official sources) into a single buyer-grade report on that exact address, so you can triage it before committing to the £250–450 conveyancing search pack.

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Sources

How HouseCheckup works

From search to full report in three simple steps.

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    Search any address

    Enter an address in England, Wales and Scotland. Coverage varies by nation and source.

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    See the IQ Score

    See an initial area risk screen where enough data is available, with the checks and coverage behind the score.

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    Choose Lite (£9.99) or Complete (£24.99). The report is emailed to you within 24 hours, usually faster, with every source named and any check it could not run stated.

Frequently asked questions

Is it safe to buy a house over old coal mines?
Usually, yes. Most coalfield homes are structurally sound. Safety depends on the depth and type of workings, which the CON29M coal search reveals. Shallow workings and unrecorded shafts carry more risk and may need specialist assessment.
Do I need a coal mining search?
If the property is in a coalfield, yes, and your lender will usually require it. The CON29M search is ordered by your solicitor and is the authoritative record of mining beneath the address.
Who pays for coal-mining subsidence damage?
The Mining Remediation Authority provides a route for reporting suspected coal-mining subsidence damage. Liability and eligibility depend on the circumstances; a search does not establish your legal rights or guarantee compensation. Seek advice on the actual damage and claim.

Still have a question? We typically respond within 24 hours.

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