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Energy is scarce and expensive. The carbon and energy footprint of every property should be optimized as rapidly as possible. The energy calculator gives an instant assessment and suggests solutions.

For a long time, planning and building sustainable and climate-friendly real estate was seen as a distant goal. However, the current energy shortage and ever stricter energy laws are convincing reasons to act quickly. Sustainability expert Johannes Gantner takes us through the solutions.

What makes a renovation climate-friendly? Various labels and standards define this. Learn here about the 5 most important sustainability labels in Switzerland.