Construction supervision in Tehran runs on stage reports. At the end of each milestone — foundations, frame, rough construction, finishes, and completion — the supervising engineer records whether the work conforms to the approved drawings. These reports are the basis for issuing a completion certificate, and a missing one halts the case.
Recent months have brought more emphasis on filing these reports promptly in the system. The logic is straightforward: a report filed months after the work was done has lost its verification value, because the work is covered and a return visit shows nothing. Foundation reinforcement already under concrete cannot be re-inspected.
The cost of delay reaches the owner in layers. First, the case stops progressing and the completion certificate is pushed back. Second, later stages get built on top of work that has not been approved; if a discrepancy is found afterwards, correcting it costs several times more. Third, a dispute with the contractor over who pays for that correction becomes likely.
The owner's role here is active, not passive. Scheduling the supervisor's visit before any pour or before work is covered is usually delegated to the contractor, and it is sometimes forgotten. We advise owners to keep a simple inspection schedule and check progress against it. On projects we supervise, that schedule is handed to the owner at the start of the job.
