Sales Ratio Studies: Make sure your GIS is doing the heavy lifting

By Billy Burle, VP Sales and Marketing

It’s been said that “if a picture is worth a thousand words, a map is worth a thousand pictures”.  I couldn’t agree more.  The power of maps and GIS is the ability to quickly visualize information to give you a greater sense of understanding and clarity about all of the data you have at your fingertips.

I could write for days regarding all of the examples related to the power of spatial visualization (that’s a fun phrase to say, isn’t it).  However, because I like you, I’m going to spare you all of my spatial ramblings and focus on just one example – sales ratio studies.

The role of a local government assessor is to ensure fair and equitable taxation for the property owners in their jurisdiction.  Essentially, like properties in the same geographic location should have similar appraised values.  Visit www.IAAO.org for a plethora of resources relating to fair and equitable taxation.

Now, let’s look at sales ratios within a specific neighborhood.  The example below shows the calculated appraisal statistics for the selected parcels. They are also sorted into various ranges and color coded as such.

Outliers shaded blue
Outliers shaded blue

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