Which type of obsolescence is generally incurable?

Economic obsolescence is typically considered incurable because it stems from external factors affecting property value that a property owner cannot control. These factors may include changes in the economy, zoning laws, increased crime rates, or the development of undesirable facilities nearby. Because these issues are outside the property's physical structure or the owner's ability to fix, they often result in a loss of value that cannot be rectified through repairs or renovations.

On the other hand, physical obsolescence refers to physical deterioration and damage to a property that can often be remedied through maintenance or repairs. Functional obsolescence involves changes in design or utility that may be updated or upgraded to improve the property’s functionality. Environmental obsolescence can also be remedied by making modifications, though it is often associated with changes in environmental regulations. These types of obsolescence can often be addressed, whereas economic obsolescence generally remains beyond the property owner's control and thus is classified as incurable.