The Connecticut State Data Center has been working on visualizations that highlight some of the data available on the Connecticut Open Data Portal.
This second visualization is a look at planning applications submitted to the City of Hartford between June 30th, 2009 and November 10th, 2014. The original data can be found here.
This visualization includes three views. The first is a map that can be easily searched by street name or filtered by date of application and application type. The second view is a GoogleMaps interface that allows a user to view the data over satellite imagery and even use Google Street View to try and see specific properties. In addition, there is an interactive area chart that tracks the total number of applications submitted per year, including those totals broken down by the type of application.