Crafting of the housing census in Donostia – Sebastián from data and expert knowledge. 


  • Create an updated and automated real housing census


  • Advanced data analytics
  • Capture of housing and urbanism expert knowledge
  • Generation of algorithms that construct the census from master files and expert knowledge


Unique and updated housing census

Detection of issues in the Land Registry

Detection of individuals living in spaces destined to other uses

Detection of buildings with potentially empty units

98,85% buildings automatically characterized

99,50% units automatically characterized

Datacy has done an amazing job with our housing data. Thanks to them, we have an accurate, complete and up-to-date housing census. Very friendly and professional treatment.

Pilar Braceras - Head of the municipal data observatory (Donostia-San Sebastián City Council)