Passive House Certification

Ecofys is authorised by the German Passive House Institute (PHI) to certify Passive Houses as an independant consultancy business company.  The Certificate ”Qualitätsgeprüftes Passivhaus Dr. Wolfgang Feist” keeps records of the energetic characteristics of a building and confirms that the certified building meets the requirements of the Passive House Standard.

Our services:

  • Assessment of the passive house planning right from the planning stage in line with the criteria for residential and non-residential buildings
  • Competent and neutral review and analysis of weak points of the energy concept
  • Calibration and consultancy for optimal fulfillment of the certification requirements
  • Consulting service for planning teams concerning the Passive House Standard
  • Aim of Certification: Qualitätsgeprüftes Passivhaus Dr. Wolfgang Feist

A certification by Ecofys is only possible if Ecofys is not part of the planning team. The latest version of the criteria to achieve a passive house certification can be found on the website of the Passive House Institute:


Bernhard von Manteuffel
Urban Energy
Etrium, Cologne