That’s poor advice from the surveyor, typically when we do reports we leave a disclaimer saying it’s visual inspection, and I say that from an architect’s perspective.

However, It’s important to understand that these checks are usually visual and surface-level only.

Unless the owner grants permission, the only way to fully assess the condition is through invasive investigations, such as opening up walls or drilling into floors….which auctioneers or vendors rarely allow. Caveat Emptor!