A site survey should answer a question that the project needs resolved. For a government facility considering wireless or cabling work, a request that simply says 'survey the building' may leave the scope and expected output unclear.
Explain the decision behind the visit
State what the organization is considering and which uncertainty prevents the next step. Provide the known work areas, current records, and relevant service requirements. Ask the survey team to identify the access, personnel, and information needed to perform the agreed assessment. Distinguish a visual walkthrough from technical investigation that requires additional methods or authorization.
Define the useful output
Agree on the expected findings, drawings, photographs where allowed, and unanswered questions. Ask for assumptions and limitations to be visible so the report can be used appropriately. Identify who will review the result and how it informs the next decision. A survey can reveal the need for further work without being incomplete if that boundary was clear from the start. Ask the intended report reader whether the proposed output will answer the decision they face.
Practical takeaway
Commission a survey around a decision and an expected record. That helps both teams understand what the visit can establish and what still requires separate review.