The Completion Ledger: A Commercial Close-Out Discipline for UK Projects

At practical completion, the snagging list is often treated as a facilities management document: a clipboard of minor items, passed to the contractor and chased by the client’s building manager. That framing is understandable, but it is commercially incomplete. Practical completion is a gateway event. It can trigger retention release, transfer of insurance and possession, the end of liquidated damages, and the start of the defects liability period. The snagging list sits inside that gateway. If it is vague, it will either delay the gateway or create a second dispute after the final account has been agreed.

The better approach is to treat the list as a completion ledger: a structured record that separates types of outstanding work, assigns value and ownership, and defines the evidence required before each item is closed. The following checklist is designed for clients, contractors and project managers who want the final stages of a UK project to be closed with the same discipline as the first.

Separate the defect from the incomplete work

The first failure on many snagging lists is language. Items are described as ‘snags’ without distinguishing between work that is defective and work that is simply not finished. The distinction matters because the remedies, timescales and commercial consequences are different. A defective item may be capable of being made good during the defects liability period. An incomplete item may affect whether practical completion can be certified at all.

A completion ledger should use explicit categories. A practical starting point is set out below.

This table is not a substitute for the contract definition of completion. Under JCT and NEC forms, the test is not identical, and the project’s own amendments and scope documents will govern. But the table forces the team to ask the right question before an item is added to the list: what is this, and what is its commercial consequence?

Give every item a value and an owner

A snagging list without values is a list of opinions. A completion ledger should record, for each item, a reasonable estimate of the cost to complete or make good, the party responsible for doing the work, the date by which it will be done, and the evidence that will close it. The values need not be precise to the penny, but they should be defensible. A client’s representative should be able to explain how the figure was derived, whether from a subcontract quotation, a measured estimate or a provisional allowance.

Ownership is equally important. ‘Contractor to resolve’ is not an owner. The ledger should name the organisation and, where possible, the individual or role responsible for the next action. If an item depends on a client instruction, a supplier part or a design clarification, that dependency should be recorded. The aim is not to create a blame register. It is to prevent items from circulating between parties without a decision.

Agree the evidence before sign-off

Most close-out disputes are evidence disputes. The work may have been done, but the record does not show when, by whom or to what standard. The completion ledger should therefore define, at the point the item is raised, what evidence will be accepted as closure. Examples include dated photographs, test certificates, manufacturer commissioning sheets, signed inspection records, or a joint sign-off by the client’s representative and the contractor’s site manager.

The evidence should be proportionate. A minor painting defect does not need a formal test certificate. A fire stopping item does. The ledger should say which is which. It should also record who is entitled to sign off the item. Where the client’s team has delegated inspection to a third party, that authority should be documented rather than assumed.

A practical checklist for the final month

Before the final account is negotiated, the project team should be able to answer the following questions.

1. Does the contract define practical completion, and has the team applied that definition rather than a generic site standard?
2. Was a snagging protocol agreed before the final inspection, including who attends and how items are recorded?
3. Has every item been classified as incomplete work, defect, damage or client instruction?
4. Does each item have a cost estimate, an owner and a target date?
5. Is the evidence required for closure stated on the ledger, not agreed after the event?
6. Are retention, withholding and final account positions linked to the ledger rather than discussed separately?
7. Has the client’s representative confirmed who may sign off items?
8. Are defects liability period obligations recorded against the correct items?
9. Has the contractor been given a clear route to challenge an item it considers outside its scope?
10. Will the completed ledger be issued as a controlled document, with revisions tracked?

Why this matters to the final account

The final account is not a separate exercise that begins after completion. It is shaped by the quality of the completion record. If the snagging list is a loose collection of emails and site notes, the final account will inherit that uncertainty. If it is a valued ledger, the parties can see what is outstanding, what it is worth and what evidence will close it. That does not eliminate disagreement, but it narrows the space in which disagreement can become dispute.

Completion should be treated as a controlled commercial process. The snagging list is not a facilities management afterthought. It is the record that tells the client what it is accepting, the contractor what it still owes, and both parties what the final account should reflect. A completion ledger does not make close-out effortless. It makes it legible.