In an evaluation of 1,681 existing and new buildings marketed by McMakler, it emerged that, on average, only 13 percent of all energy certificates issued received the energy efficiency classes A+, A or B and thus the three best possible energy efficiency classes. Looking only at new buildings, things look better: Here, 71 percent receive energy efficiency classes A+, A or B.
The company also compared the German states with each other. In terms of energy efficiency in buildings, Baden-Württemberg, Hamburg and North Rhine-Westphalia come out best. There, 16.9 and 16.7 percent and 15.4 percent of the energy certificates have energy efficiency classes A+, A or B, respectively. The worst energy efficiency ratings (G and H) occur in Mecklenburg-Western Pomerania, Berlin and Thuringia, with 41.8, 38.7 and 35.5 percent respectively.
McMakler suspects that the reason for this is that there are fewer new-build properties in Mecklenburg-Western Pomerania, Berlin and Thuringia than in Baden-Württemberg, Hamburg and North Rhine-Westphalia. In addition, the company also commissioned the opinion research company YouGov to conduct an online survey of over 1,060 owners. The result was that only 44 percent of respondents did not know the energy efficiency class of their property.
Source: McMakler
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