Abstract: Tools for analyzing sub-markets corresponding to subject properties are disclosed. An initial pool of property sales is determined as a general market for a subject property, according to property characteristics. Interfaces are provided to allow revision of the property characteristics to iteratively flexibly define new sub-markets for the subject property. A map image is displayed depicting the subject property along with properties included and excluded from the current sub-market. Additionally, a graph image depicts sale price versus hedonic price for each property. Boundary lines are provided in the graph image to depict sales price outliers among the results for the current sub-market. The distribution of any selectable property characteristic for the general market and the current sub-market can also be displayed in a graphical image. Interfaces allow the user to investigate individual properties (e.g., outliers) and to selectively include or exclude any given property.

Abstract: A subject property and a corresponding default pool of property sales are determined as a general market for the subject property. Revised property characteristics are submitted to define a new sub-market for the subject property. In connection with this, a map image is displayed depicting the subject property along with properties included and excluded from the sub-market. Functional relationships between selectable property characteristics for the general market and the sub-market are generated, and graphs depicting the same are rendered accordingly. In one example, the distribution of any selectable property characteristic for the general market and the sub-market are concurrently displayed in a graphical image. Interfaces are also provided for individually including and excluding properties from a sub-market.