Procurement teams often use "Clerk of Works" and "site inspection" as if they meant the same thing, and on a quiet project the difference rarely matters. When something goes wrong, it matters immediately — because the two carry different authority, different independence and, in the end, different weight as evidence.
The Clerk of Works
Traditionally the client's eyes on site, the Clerk of Works provides regular — often full-time — oversight of workmanship against the contract documents. The role is defined by presence and independence: appointed on the client's side, it exists to protect the client's interest in quality, not the contractor's programme. A Clerk of Works inspects, records and reports; they do not normally instruct the contractor directly — instructions come through the architect or contract administrator.
Site inspection
A site inspection is a discrete activity — a visit, a check, a record at a point in time. It can be carried out by the contractor, the designer or an independent party, and its value depends entirely on who does it, against what criteria, and how the findings are recorded.
- Clerk of Works: regular or full-time presence, client-side, focused on quality.
- Site inspection: a point-in-time activity whose performer and remit vary.
- Independence and authority differ sharply between the two.
The question that decides a dispute is rarely "was it inspected?" It's "by whom, against what, and is it written down?"
Why the difference matters
In a dispute, tribunals generally place more weight on documents made at the time than on later recollection — and a record made by someone independent of the work is harder to challenge as self-serving. An independent inspection regime, whatever it's called, produces exactly that kind of evidence for the asset owner.
- Define the role's authority and reporting line at appointment, not after a problem.
- Make inspection criteria explicit and tie them to the specification.
- Record findings at the time, independently.
- Treat independence as what gives the evidence its weight.
Further reading
- JCT Standard Building Contract — clerk of works provisions
- Institute of Clerks of Works and Construction Inspectorate (ICWCI) — role guidance
- Gestmin SGPS SA v Credit Suisse (UK) Ltd [2013] EWHC 3560 (Comm) — weight of contemporaneous documents over recollection