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Art of livingCECB and property value: what energy performance changes in Geneva and the canton of Vaud
A property with a poor CECB rating sells more slowly and for less in 2026. A figures-based look at the brown discount for owners in Geneva and Vaud.
Contents
In 2026, a property rated F or G on the CECB sells on average more slowly and at a discount, a value gap professionals call the brown discount, according to analyses reported by Bilan and Le Temps.
What the CECB measures
The CECB rates a building from A to G according to its energy efficiency. The rating now influences the purchase decision, particularly for larger floor areas, according to data from Statistique Vaud.
The price gap is widening
A prudent buyer now factors the cost of future energy works into their offer.
Before and after renovation
- CECB
- Cantonal energy certificate for buildings, which rates a property's energy efficiency from A to G.
- Brown discount
- A price discount applied to energy-intensive properties, as opposed to the premium given to high-performing ones.
Frequently asked questions
Does a poor CECB rating lower the price?
Yes. In 2026, properties rated F or G are subject to a discount and sell more slowly, according to analyses reported by Bilan and Le Temps.
Does renovating improve value?
An energy renovation raises the CECB rating and reduces the brown discount, which supports resale value.
Is the CECB mandatory?
Depending on the canton and the type of transaction, a CECB may be required. Statistique Vaud documents the growing requirements.
Christina porte les sujets de durabilité et accompagne les biens vaudois.
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