There are many different certification schemes for ecohouses. These vary in terms of what criteria is covered, some focused primarily on energy efficiency whilst others take a broader view of what it means to be sustainable.
We haven’t completed this article yet but if you would like to know more about some of the certification schemes they include:
Passivhaus by Passivhaus Institute
Home Quality Mark by BRE
Future Homes Standard by GBCA
Core Green Building by Living Future Institute
Active House by the Active House Alliance
EDGE by World Bank Group
SBM by the Institute of Building Biology + Sustainability