Seven plus extra one houses certified in eight energetic classes
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Photo credit: © Zoonar/SlavomÃr Valigurský / Alamy / Afripics
License: Royalty Free
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Keywords: architecture, building, certified, classes, construction, economic, efficiency, efficienty, energetic, energieeffizienzlevel, energielevel, energy, environment, environmental, extra, green, heating, home, house, houses, impact, kfw-effizienzhaus, perspective, rating, standard
