Highest and best use

Highest and Best Use (HABU) is a term of art in the appraisal process. It is a process to determine the use of the property which produces the highest value for the land, as if vacant. There are four steps to the process. First, the appraiser determines all uses which are legally permissible for the property. Second, of the uses which are legally permissible, which ones are physically possible. Of those, which ones are financially feasible (sometimes referred to as economically supported). Of those uses which are feasible, which one and only use is maximally productive for the site. In a simple context, the appraiser must do this twice, comparing the results—as if the land is vacant and in the as-is-improved state, taking into account the costs of demolishing any existing improvements. The outcome of this process is the highest and best use for the site. An appraisal of market value must explicitly assume that the owner or buyer would employ the property in its highest and best use, and therefore value the site accordingly.

In more complex appraisal assignments (e.g. -- contract disputes, litigation, brownfield or contaminated property valuation), the determination of highest and best use may be much more complex, and may need to take into account the various intermediate or temporary uses of the site, the contamination remediation process, and the timing of various legal issues.