A feature of a property which may not be recognized fully in the price of the property.

A feature of a building which is not fully valued by the marketplace. For example, if a house had a marble sink with 24-karat gold faucets, the market would probably not add the cost of the sink and faucets to the value of the home. The sink would be referred to as a superadequacy.

An excess in the capacity or quality of a structure or structural component.

A component of real estate that is beyond what is needed in the structure.