Which drawing would verify that the final built structure matches the approved plan?

• A. Floor plans
• B. Foundational plan
• C. Mechanical plan
• D. As-built drawing

Answer: (D)

Capturing the actual built condition is what verifies that the finished structure matches what was approved. An as-built drawing records exactly what exists in the field—locations, dimensions, and configurations of all components—as they were constructed, including any changes made during construction. Because it is updated to reflect field adjustments, it shows the true, physical state of the project, making it possible to compare against the approved plan and confirm conformity or identify discrepancies. Other drawings serve different purposes: floor plans depict the intended space layout, foundational plans detail structural foundations, and mechanical plans outline planned equipment arrangements. They guide design and construction, but they don’t prove the completed work matches the approved plan unless they have been updated to become as-built drawings.