Healthcare services are water and energy intensive, consume a great deal of hazardous and non-hazardous
materials and are responsible for producing polluting emissions [7]. Built environment accounts for 40% of all CO2
emission in the Netherlands, thus, sustainable building has become an important issue. Hospitals alone count for 4%
of the built environment, hence there is a lot to gain [8]. Therefore it is necessary that hospitals feel the urgency to
undertake actions to reduce their CO2 emissions.