Philadelphia, August 26, 2015 – The City of Philadelphia released data about property assessments, including property characteristics, ownership information, sales information and assessment history for all 579,000+ parcels, on the City’s open data portal.


“Property assessment data impacts every homeowner and business in the city.  It is vitally important that this information, and the data used to inform it, is made available to the public,” said Mayor Michael A. Nutter.  “This release joins a growing list of more than 225 open data sets that help inform citizens and strengthen their trust in government.”


In addition to being available for download, the data is accompanied by a visualization tool enabling users to easily browse, filter and drill down into the data within their web browser. For example, with a few clicks, users can see which residential properties with mixed-use zoning are assessed at over $1 million, or which commercial properties in their neighborhood were built before 1975.


“Today’s release paints a picture of property characteristics and valuations across the city,” said Michael Piper, Chief Assessment Officer at the Office of Property Assessment. “By providing interactive charts and maps, we aim to empower residents, businesses and nonprofit groups alike through data.”


The data and the accompanying visualization tool can be accessed at


Posted in Mayor's Press Releases, Press Release
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