Archaeological assessment for development in Scotland

If you are developing land in Scotland, you may need to carry out an archaeological assessment before the planning authority will grant permission. Scotland's planning system requires archaeological remains to be properly considered through National Planning Framework 4 (NPF4) Policy 7: Historic Assets and Places, which is part of the statutory development plan.

This guide explains when archaeological assessment is triggered, what it involves at each stage, how to deal with planning conditions requiring archaeological work, and what to do if finds are made during construction.

When archaeological assessment applies

Archaeological assessment is required when the planning authority considers that your development site has known or suspected archaeological potential. This applies whether you are building new premises, extending existing ones, or carrying out groundworks such as foundations, drainage, or landscaping.

You are most likely to need archaeological assessment if your site:

• Is on or near a recorded archaeological site shown on Canmore or PastMap
• Is within or adjacent to a scheduled monument
• Is in an area identified in the Local Development Plan as having archaeological sensitivity
• Has not been previously developed (greenfield land)
• Is in a historic town centre or burgh

The planning authority's archaeology adviser (or Historic Environment Scotland for nationally important sites) will recommend whether assessment is needed when your application is registered.

Step-by-step: the archaeological assessment process

Archaeological assessment follows a staged approach, with each stage informing whether further work is needed. You should build these stages into your project programme from the outset.

Understanding planning conditions

Where planning permission is granted on a site with archaeological potential, the planning authority will attach conditions requiring specific archaeological work. Understanding these conditions helps you plan your programme and budget accurately.

Scheduled monuments: additional consent required

If your development affects a scheduled monument, you need scheduled monument consent (SMC) from Historic Environment Scotland in addition to planning permission. SMC is a separate legal process under the Ancient Monuments and Archaeological Areas Act 1979. Works affecting a scheduled monument without SMC are a criminal offence.

Check PastMap to identify whether any part of your site falls within a scheduled monument boundary. If in doubt, contact HES directly.

Treasure Trove: reporting finds

Scotland's Treasure Trove system is fundamentally different from England and Wales. Under Scots common law, all ownerless archaeological objects found in or on the ground belong to the Crown, regardless of their material, age, or value. This is much broader than the Treasure Act 1996, which applies in England, Wales, and Northern Ireland and covers only precious metals and coin hoards.

Who pays and who does the work

The developer pays for all archaeological assessment, evaluation, excavation, post-excavation analysis, and publication. This is a standard cost of development in Scotland and is not funded by the planning authority, HES, or any other public body. You should obtain quotes from qualified archaeological contractors at the earliest stage to inform your project budget.

Archaeological work must be carried out by a professionally qualified archaeologist, typically a member of the Chartered Institute for Archaeologists (CIfA). The planning authority does not normally specify which firm to use, but the local authority archaeology service or HES must approve the Written Scheme of Investigation before work begins.

Common problems and how to avoid them

• Late discovery of archaeological constraints: Check Canmore and PastMap before purchasing a site or submitting a planning application. Discovering constraints after purchase can cause significant delays and cost.
• Missing the assessment stage: If you start groundworks without completing required archaeological work, the planning authority can take enforcement action. A breach of condition notice can halt your entire project.
• Underestimating timescales: Evaluation trenching can take 2 to 4 weeks. Full excavation of a significant site can take several months. Post-excavation analysis and publication can take a year or more. Build these timescales into your programme.
• Unexpected finds during construction: Even on sites where no archaeological potential was identified, remains can be discovered during groundworks. Stop work in the area of the find, contact the local authority archaeology service, and report to the Treasure Trove Unit.
• Not engaging early with HES: For sites near scheduled monuments, listed buildings, or other designated heritage assets, seek pre-application advice from HES. Early engagement reduces the risk of objection or call-in.

What to do next

If you are planning a development in Scotland:

1. Search Canmore and PastMap for your site before taking any other step
2. Contact your local authority archaeology service or HES for pre-application advice
3. If assessment is likely, commission a desk-based assessment from a CIfA-registered archaeologist
4. Factor archaeological work into your project budget and programme from the start