The Data Observatory is a collection of various sources of data with varying licenses. We have worked hard to find you data that will work for the broadest set of use-cases. For competency, please still review the terms for any dataset you use and respect the rights of the owners for each dataset. The following third-party data sources are used in the Data Observatory, and we have included the links to the terms governing their use.
Zillow Home Value Index | This data is "Aggregate Data", per the Zillow Terms of Use<br/><br/>[http://www.zillow.com/corp/Terms.htm](http://www.zillow.com/corp/Terms.htm)
El Instituto Nacional de Estadística (INE) | The National Statistics Institute (INE) of Spain includes data from multiple sources. If you are re-using their data, they explicitly require that you reference them accordingly<br/><br/>[http://www.ine.es/ss/Satellite?L=0&c=Page&cid=1254735849170&p=1254735849170&pagename=Ayuda%2FINELayout](http://www.ine.es/ss/Satellite?L=0&c=Page&cid=1254735849170&p=1254735849170&pagename=Ayuda%2FINELayout)