• Functional obsolescence is the reduction in the usefulness or desirability of an object due to an obsolete design feature that is not easily changed.

  • Consumers can reduce the losses caused by functional obsolescence by taking into account the long-term usefulness of the purchased goods.
  • While various efforts have been made over the years to objectively quantify the effect of functional obsolescence on real estate, the assessment of functional obsolescence is largely subjective.