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Archaeology conditions on UK planning decision notices
Written scheme of investigation, watching brief, heritage impact — archaeology wording on sealed decision notices often blocks commencement until a WSI is approved. This guide helps applicants read those conditions as printed. Informational only — not planning advice and not discharge drafting.
Why archaeology conditions appear
Local planning authorities attach archaeology conditions when heritage assessments or policy expect ground disturbance to be monitored or investigated. On the decision notice (not the officer report alone — see decision notice vs officer report), you will usually see numbered conditions referencing:
- A written scheme of investigation (WSI) to be submitted and approved.
- A watching brief during excavation or foundation works.
- Recording and reporting requirements if finds are encountered.
- Occasionally preservation in situ or redesign wording if remains are identified.
Typical trigger wording
Archaeology conditions are frequently pre-commencement — compare pre-commencement vs pre-occupation. Common phrases:
- “No development shall commence until … WSI … submitted to and approved in writing by the Local Planning Authority.”
- “All groundworks shall be subject to an archaeological watching brief …”
- “Development shall be carried out in accordance with the approved WSI.”
The exact order matters: approval of the WSI usually precedes the watching brief on site. DecisionBrief extracts trigger labels from the sealed PDF; we do not write WSIs.
WSI vs informative heritage notes
Officer reports often discuss heritage assets at length. Only numbered conditions on the sealed notice bind unless incorporated by reference — see informatives vs numbered conditions. A NOTE reminding you to contact the county archaeologist may be informative only; a condition requiring WSI approval is not.
Sequence with other pre-commencement conditions
Archaeology conditions stack with drainage, contamination and materials conditions — each may need separate discharge approvals:
- Read whether commencement is blocked globally or per condition.
- List every pre-commencement row — see which conditions need a discharge application.
- Do not assume one archaeology discharge covers contamination or SuDS submissions on the same notice.
Approved plans and heritage
If a condition requires development in accordance with approved drawings and an approved WSI, both must be satisfied. See approved plans conditions when plan references sit beside archaeology wording.
Reading checklist
- Open the sealed decision notice PDF — not the committee report first.
- Find numbered archaeology / heritage conditions; ignore unnumbered heritage paragraphs unless your solicitor advises otherwise.
- Mark pre-commencement triggers and what document must be approved (WSI, method statement).
- Note whether watching brief applies to all groundworks or defined areas.
- Cross-check how to read condition timing for compliance-only follow-ups.
Order a £79 sourced reading See the York sample
Questions
Is an archaeology condition usually pre-commencement?
Often yes. Wording such as no development shall commence until a written scheme of investigation has been submitted and approved is a classic pre-commencement trigger. Read the sealed notice for the exact trigger label on your permission.
What is a watching brief on a decision notice?
A watching brief requires an archaeologist to monitor groundworks and record finds. On the notice it may appear inside a WSI condition or as a separate heritage condition. DecisionBrief cites the wording as printed; we do not commission archaeological works.
Is this planning advice?
No. This guide and the £79 PDF are sourced readings of public decision notices. The council's sealed notice remains the legal document.
More guides: /guides/. Last reviewed 23 September 2026.