Structural Engineering Society (SESOC) President Paul Campbell said it was possible for a building to have been relatively undamaged by the recent earthquakes but perform differently in any large earthquake in the future with different shaking characteristics.
"This is why we recommend building owners get a qualified structural engineer to undertake a more detailed assessment of your building if you or your tenants have specific concerns about the building's performance," he said.
"Building owners need to communicate openly with their tenants to help reduce their concern. Let tenants know that they can read the full engineer's report for themselves. Ask if they would like the opportunity to talk with the engineer directly.
"It's also important that tenants communicate openly with owners and engineers about any observed damage, and that they allow access for inspection. In time like this, cooperation is extremely important," Campbell said.
"It's also important to remember that the first priority of building design is to protect life rather than minimise damage."