Vacant Structures by Census Block, Q4 2013 - Q4 2014
<p>In January, 2014, Data Driven Detroit (D3) purchased a license of the 
Valassis Corporation's VNEF Plus database to receive quarterly updates of 
address-level vacancy data. Though the address-level data are restricted by 
confidentiality clauses, D3 processed and aggregated this database to the Census …