1. The loss of value or usefulness of an asset or property due to outdated design, features, or technology, even though the asset is still physically sound
The building suffered from functional obsolescence because it lacked modern electrical and plumbing systems.
O edifício sofreu obsolescência funcional porque carecia de sistemas elétricos e de encanamento modernos.
2. In real estate appraisal, the reduction in property value caused by deficiencies in design or utility compared to current standards
The property's functional obsolescence was due to its poor floor plan and lack of open-concept design.
A obsolescência funcional da propriedade era devida ao seu plano de piso deficiente e falta de design de plano aberto.