Improvement

An improvement is any permanent addition or alteration to land that enhances value and utility. In residential real estate, improvements include the primary dwelling, attached or detached garages, pools, sheds and other constructed features.

In appraisal, improvements are analyzed separately from land, a distinction that is especially important in the cost approach, which estimates land value independently and adds the depreciated cost of improvements. The condition, quality and functional utility of improvements are key factors in this analysis. This distinction is also used in assessment practice when allocating value for property taxation.

Accurately identifying and describing all improvements is a fundamental part of the valuation process. Omissions or misclassification, such as including unpermitted space as finished living area, can materially affect value conclusions and lead to issues in underwriting or review.