What is the architect's responsibility when undisclosed conditions are discovered that differ materially from the contract documents?

• A. The architect must issue a change directive regardless
• B. The architect must pay for any increase in cost
• C. The architect must inspect; determine if they differ materially and cause changes in cost or time; and recommend an adjustment; if no change, notify owner and contractor in writing with reasons
• D. The architect must suspend work

Answer: (C)

When undisclosed conditions differ materially from the contract documents, the architect must actively assess the situation and manage the impact. The architect should inspect the condition, determine whether it differs materially and whether it affects cost or time, and then recommend an adjustment to the contract. If the assessment finds no change in cost or time, the architect must notify the owner and contractor in writing with the reasons for that determination. This approach ensures proper documentation and a formal path for any adjustments, rather than automatic directives, personal funding of costs, or suspending work without evaluation.