CDM project information: questions clients should raise early
Admin · 22 October 2026
Illustrative image. Photo by Ryan Ancill on Unsplash. Unsplash License.
A client can hold substantial information about a site without knowing whether the project team has the material it needs. Surveys may be old, records may cover only part of the building and operational restrictions may remain in one manager’s knowledge. Early questions help the client and appointed team identify those gaps before design and procurement decisions rely on assumptions.
This article concerns the management discussion around information for commercial construction projects in Great Britain. HSE’s commercial-client guidance explains the relevant CDM 2015 duties, including pre-construction information and project management arrangements. Clients should obtain competent advice for their actual work and jurisdiction; the questions here are not a complete legal or technical checklist.
Who is coordinating the information?
Identify the client representative and appointed people who will establish what is required, collect it and communicate it. Clarify the actual duty-holder and appointment arrangements with appropriate advice. Administrative coordination should support those responsibilities rather than create an informal assumption that one consultant has taken over every client obligation.
Name the internal owners of existing information. Estates, operations, maintenance and other departments may each hold relevant records. Give them a clear request explaining the project and the information being sought. A general instruction to send everything can produce a large archive while missing the person who knows a consequential restriction or recent alteration.
What is known about the site?
Ask the competent project team to identify relevant information categories and assess the available material. Record source, date, coverage and limitations. An existing drawing is evidence of what was recorded, not automatic proof of every current condition. The responsible specialists determine what verification or further investigation is needed.
Distinguish unavailable information from information not yet located. The next action may be a search, an enquiry or a planned investigation, depending on the gap. Assign an owner and a date linked to the decision it affects. Avoid allowing a missing record to become an unspoken assumption simply because the project programme is progressing.
What operational information matters?
Explain the activities continuing on or near the site and involve the people responsible for them. The appointed team needs an accurate account of relevant access, interfaces and restrictions. A client’s preferred arrangement should be distinguishable from a requirement established through a formal process. The relevant advisers determine its technical and legal significance.
A hypothetical refurbishment client expects part of a facility to remain in use. The operations team knows of regular movements and service dependencies not apparent on the initial layout. Early discussion allows the project team to investigate and plan. Without it, designers and bidders may develop proposals on an incomplete picture of the operating environment.
Ask the appointed team how it will report the significance of a newly discovered condition to the client. The organisation needs enough explanation to make decisions about access, resources or further investigation within its authority. A technical report without a clear request can leave the next step uncertain. Agree a concise way to identify the issue, evidence, consequence and decision needed, with the relevant specialist available to answer questions through the proper project route.
Which decisions depend on missing evidence?
Ask the team to connect information gaps to upcoming design or procurement commitments. This helps prioritise investigation according to consequence rather than the order in which documents were requested. A minor record correction may be less urgent than an unknown condition that affects the project strategy. The competent team should explain the significance clearly enough for the client to act.
Identify the time and resources needed to obtain the evidence. An investigation may require access, preparation or a client decision before it can proceed. Put those dependencies into the plan with owners. A requested survey date is not credible if the organisation has not agreed how the relevant area will be made available.
How will bidders receive relevant information?
Establish the controlled issue process with the appointed team and procurement advisers. The information should reach the relevant people through the appropriate arrangements, with status and limitations clear. A record in the client’s archive does not establish that a designer or contractor has received and understood its relevance.
Keep an issue record that identifies the documents and recipients. If further material becomes available, assess its effect and communicate it through the same coherent process. Avoid relying on separate informal exchanges that leave different bidders or project participants working from materially different information without an authorised basis.
What assumptions remain provisional?
Ask the team to identify consequential assumptions explicitly, including their source and review date. Some work may progress on an assessed provisional basis, but that basis needs competent consideration and clear limits. The client should understand which decisions are conditional and what evidence could change the approach.
Do not equate a detailed model or drawing with verified knowledge of every condition it represents. The format can make an assumption appear settled. The information record should preserve the distinction so that later teams know what still needs assessment. A clear question now is preferable to a hidden uncertainty discovered after commitment.
How are responsibilities reviewed as the project changes?
Confirm how changes in scope, team or sequence trigger review of the information and management arrangements. The client should maintain access to appropriate advice and understand the decisions it needs to make. HSE’s CDM guidance on regulations provides further context for pre-construction information and the relationships between duty holders.
Use the actual appointments and applicable requirements to resolve responsibilities. A meeting note should not casually reallocate a duty or imply that an administrative role completes a professional assessment. The management process needs a clear account of who provides, reviews and acts on information at each relevant stage.
Can the team find the current position?
Check that authoritative information is identifiable and accessible to the people who need it. Use controlled references, clear status and a route for questions. Multiple copies with inconsistent dates can make it difficult to know what the project relies on. The client’s information coordinator should work with the appointed team to maintain a coherent record.
When personnel change, provide a focused handover of consequential gaps and assumptions. The incoming person should not have to infer the current position from historical requests. Explain what is complete, what remains unresolved and which decision is needed next. This preserves continuity without pretending every earlier question has disappeared.
What information will the next stage need?
Discuss the relevant health and safety file and other handover information through the appropriate project roles and requirements. Agree the receiving arrangements early enough for suppliers and designers to provide the necessary material. Do not wait until completion to discover that the client’s operating team cannot use the proposed format or locate important records.
Keep different information deliverables distinguishable. A large general project archive is not automatically the same as a specific required file or record set. The appointed team and competent advisers should establish the applicable content and responsibilities. The client coordinates its operational needs and confirms who will receive and maintain the relevant information.
Early information questions help a commercial client provide a more dependable starting point for its project team. They expose gaps, connect investigations to decisions and preserve the difference between verified knowledge and assumptions. With competent advice and clear ownership, the client can support the applicable duties through an organised process rather than rely on the size of its document collection.
Retain the decisions made about information gaps and investigations, including their basis. Later reviewers can then understand what was known at the time and why the team chose a particular next step.
