Definitions for "Overimprovement"
An improvement of excessive size or cost in comparison with similar properties particularly when it is not the highest and best use of the land.
An improvement that does not represent the most profitable use for the site on which it is placed because it is too large or costly and cannot develop the highest possible land value; may be temporary or permanent.
An improvement to property that is not likely to contribute its cost to the total market value of the property.