Weekly Viz 2019-03-11

Philadelphia Real Estate Transfers

About Makeover Monday

MakeoverMonday is a social data project: “Each week we post a link to a chart, and its data, and then you rework the chart. Maybe you retell the story more effectively, or find a new story in the data. We’re curious to see the different approaches you all take. Whether it’s a simple bar chart or an elaborate infographic, we encourage everyone of all skills to partake. Together we can have broader conversations about and with data.”

Starting from Jan 08, 2018, I decided to put aside one hour on Monday weekly to create some visualization and find some insights from the data.

The datasets are published each week at: MakeoverMonday Datasets.

Makeover Monday 20190311

This week we have a huge dataset – the property transfer and tax records in Philadelphia from 1999 to 2018. (This is definitely the largest dataset I have ever seen on MakeoverMonday). And this reminds me of a project I have worked on at school – using the unsupervised learning algorithms to identify potential property tax fraud.
I also like this week’s original viz. It’s a clear and nice small dashboard.

My Visualization

Got lost in all those tax terminology, I turned out replicate the original viz in tableau…

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Please notice that all the visualizations are designed for desktop view, so it is recommended to view them on a desktop device.

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Insights

• The real estate transaction numbers in Phlly increased steadily from 2000 to 2007, then started to decline due to the financial crisis. Since 2010, the number has been rather flat over years;
• The most common document types are mortgate and satisfaction;
• The most popular zipcode in 2018 is 19146.

Follow this link to find more weekly vizzes :)