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Knowledge Article

When a Coal Mining Risk Assessment Is Needed for Planning

When a CMRA is typically required and why it matters even where mining activity feels historic or distant.

A Coal Mining Risk Assessment is usually needed where a site sits within an area affected by past coal mining activity and the planning authority or Coal Authority expects the risk to be addressed. Even when the mining history feels remote, the planning implications can be current and very real.

Why the assessment matters

Past mining can introduce risks such as shallow workings, mine entries, ground instability or gas migration concerns. Those issues do not need to be dramatic to matter. If they could affect the safety or feasibility of the proposed development, the planning process normally expects them to be reviewed properly.

What the report helps establish

A CMRA looks at available records, the mining setting and the relationship between known or possible features and the proposed development. The purpose is to identify whether a credible risk exists and whether further investigation or mitigation is likely to be required.

Why early review is useful

If the issue is identified late, planning submissions can stall while extra information is prepared. Early review allows the team to decide whether the site is likely to proceed smoothly or whether additional work needs to be budgeted and programmed.

On affected sites, a CMRA is not just a planning formality. It is the report that helps the project team understand whether the mining legacy has practical implications for layout, safety and next-stage investigation.

Need a CMRA for planning?

Use this resource to get clear first, then review the service page or send over the project details when you are ready.

Related service

Coal Mining Risk Assessment

If this resource matches the issue on your site, the next step is usually to review the main service page and decide what information you already have ready.