Archaeological Monitoring (Watching Brief)

Archaeological monitoring, commonly known as a watching brief, involves an archaeologist observing groundworks to identify, investigate and record any archaeological remains exposed. It is often required as part of an archaeological planning condition.

A.P.A.C. Ltd undertakes archaeological monitoring for projects ranging from small domestic extensions to larger, phased developments. Monitoring may be required where groundworks could disturb archaeological remains, or where earlier archaeological investigations have recommended monitoring during subsequent construction work.

When do I need archaeological monitoring (a watching brief)?

You may need archaeological monitoring where your proposed groundworks could disturb archaeological remains. It is often required by a planning condition or recommended by the planning authority’s archaeological adviser.

Monitoring may be requested for works such as:

• Excavating foundations for extensions or new buildings
• Digging drainage or service trenches
• Ground reduction or landscaping
• Further groundworks following earlier archaeological investigations

The requirement depends on the site’s archaeological potential and the nature of the proposed work. Having a monitoring requirement does not necessarily mean that remains will be found or that a large archaeological excavation will be needed.

If your planning permission includes an archaeological condition, contact A.P.A.C. Ltd before starting groundworks so we can review the wording and explain the next steps.

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How the process works

1. Before work starts

We review your planning requirements, agree the monitoring arrangements and coordinate with your contractor.

2. During groundworks

We monitor the agreed excavations, investigating and recording any archaeology exposed. Work may pause locally if recording or further advice is needed.

3. After the site work

We prepare the report and complete the agreed analysis and archiving requirements to support your planning condition.

Monitoring, evaluation or excavation?

Being asked for one does not automatically mean you need all three.

Monitoring (watching brief)

Observing your contractor’s groundworks and investigating and recording any archaeology exposed.

Evaluation

Investigating a sample of the site, usually through trial trenches, to establish what archaeology is present and whether further work is needed. Evaluation page

Excavation

Detailed archaeological digging and recording within an agreed area before remains are affected by development. Excavation page

Occasionally, discoveries during evaluation or monitoring may lead to further excavation. If this is needed, we explain why and agree the next steps with you and the planning authority’s archaeological adviser.