Construction handover is often treated as a final-week document chase: as-built drawings arrive late, certificates sit in unrelated folders and O&M manuals contain information nobody has checked against the finished building. The practical question is whether the information handed over can actually support safe operation, maintenance and future construction work.
New industry guidance starts with the people inheriting the building
The Construction Leadership Council and BIM in Asset Management have opened consultation on new guidance covering As Built & Handover Information. The work focuses on a simple question: what information does somebody actually need when a construction project finishes?
The consultation is intended to apply across different project scales, from major developments to refurbishment, retrofit and smaller replacement work. That is useful because poor handover is not exclusively a BIM problem on large projects.
The consultation itself is industry guidance in development rather than new legislation. Existing statutory duties still need to be considered separately.
See the As Built & Handover Information consultation.
A handover pack can contain several different legal and contractual records
The phrase “handover pack” is convenient but can conceal several separate information requirements.
Under CDM 2015, a health and safety file is required for projects involving more than one contractor. Its purpose is specific: to contain information likely to be needed to protect health and safety during subsequent construction work on the building.
Separate requirements can arise under the Building Regulations, including relevant fire-safety information. Higher-risk buildings in England also have more extensive golden-thread information requirements. O&M manuals, warranties, commissioning records and asset registers may then be required by the project specification or contract.
These information streams can overlap, but they are not automatically the same document. Producing an O&M manual does not, by itself, prove that every CDM, Building Regulations or golden-thread obligation has been satisfied.
“As built” should mean what was actually installed
A drawing can be professionally produced and still be a poor as-built record if it reflects the design team’s last intention rather than the completed asset.
If a service route changes during construction but the drawing remains unchanged, someone carrying out future intrusive work may rely on inaccurate information. The same issue can arise with fire dampers, structural fixings, underground services, roof-access systems, electrical isolators and other safety-critical assets.
The useful question is: what evidence gives the recipient confidence that the record reflects what was actually installed?
That evidence might include inspection records, commissioning results, approved changes, test certificates, marked-up drawings or other proportionate verification.
Our earlier article on digital product records in construction makes a related distinction: product data can identify what a product is, but does not by itself prove where it was installed or whether the installation matches the approved design.
The information gap often appears after subcontractors demobilise
Project teams frequently discover missing records after the specialist contractor has left site. The supervisor has moved to another project, the commissioning engineer is no longer available and somebody is left reconstructing drawings, certificates or product information from old emails.
The better approach is to define information requirements before the work begins. Specialist contractors should know what records they are expected to provide, in what format, who will review them and when they are due.
Where information is generated progressively, it should be collected progressively. Fire-stopping records, commissioning results, plant information and as-built changes should not all be deferred until the final week because they are traditionally considered “handover documents”.
Good handover starts at procurement, not practical completion
A simple project information schedule can identify each required record, who produces it, who reviews it, the required format, the date it becomes available and where the approved version will be stored.
On a larger project this may sit within BIM and a common data environment. On a smaller project, a controlled spreadsheet and logical folder structure may be perfectly adequate. What matters is the management process.
Changes during construction should trigger information changes. If a product, route or system changes, the team should ask what drawings, asset data, fire information, maintenance instructions and future access information are affected.
Review should also happen during the project. Sampling completed handover information each month can reveal missing approvals, contradictory references and poor naming while the people who generated the information are still available to correct it.
What should you do now?
- Review a recently completed project from the perspective of an unfamiliar facilities manager.
- Separate the CDM health and safety file, fire-safety information, O&M records and higher-risk-building information where applicable.
- Create a project-specific information schedule with owners and due dates.
- Make construction changes trigger a review of affected as-built information.
- Collect specialist-contractor information before demobilisation.
- Link test and commissioning evidence to the relevant asset or location where practical.
- Sample handover information during construction rather than waiting for completion.
- Verify critical information before project close-out.
Our professional view
The measure of a good handover pack should not be its file size. It should be whether somebody who did not work on the project can find, understand and reasonably rely on the information when they need it.
Good information management also needs to be proportionate. A small plant-replacement project does not need a complex digital twin, but it may need accurate plant references, commissioning results, isolation information, maintenance instructions and revised drawings.
The question remains the same at every scale: what will the person inheriting this asset need to know, and can we demonstrate that what we are giving them reflects what was actually built?
For clients and contractors reviewing CDM arrangements, project information or construction close-out processes, All Star Safety’s health and safety consultancy service provides project-based and ongoing support. Our CDM 2015 Awareness course also covers key project documents and dutyholder responsibilities.