The canton of Vaud has adopted a new energy law (LVLEne). It aims for a gradual phase-out of fossil fuels and requires the energy renovation of the largest, most energy-hungry buildings. Here is what Vaud property owners should anticipate — and, conversely, what does not concern them.
What the new law provides
After a year and a half of debate, the Vaud cantonal parliament (Grand Conseil) adopted the complete revision of the cantonal energy law (LVLEne) on 3 February 2026. Its entry into force is scheduled for 1 January 2027. The stated objective: to help deliver a 60% cut in greenhouse gas emissions by 2030.
Who must renovate, and when?
The renovation obligation targets the largest, most energy-hungry buildings:
| Building | Obligation |
|---|---|
| Over 750 m² (SRE), CECB class G | Renovate by 2037 |
| Over 750 m² (SRE), CECB class F | Reach at least class D by 2042 |
| Under 750 m² (detached house, small building), class F/G | No obligation to renovate the envelope |
What this means in practice
Know your building's CECB class
Everything starts here. A CECB establishes the energy class (A to G) and determines whether the renovation obligation applies to you.
Identify the floor area (SRE)
The 750 m² threshold of energy reference area separates buildings that are subject to the rules from those that are exempt. A multi-dwelling building can exceed it without you realising.
Plan ahead of the deadline
An energy renovation needs preparation: assessment, phasing, subsidies. Owners concerned are well advised to plan for 2037/2042 rather than be caught out by the deadline.
Renovate and add value: think of the two together
For Vaud property owners, energy renovation is also an opportunity to add value to the property. A major renovation project can be the right moment to consider an added storey or an extension — provided the zone, the utilisation index and the building envelope allow it.
Renovation support is substantial in the canton (the Vaud Buildings Programme mobilises tens of millions each year), but it says nothing about the building potential of your plot. Before choosing between renovating what already exists and building more, the decisive piece of information remains what your plot actually allows, backed by official sources.