Energy-efficient property renovations: "Gross rents will rise, but service charges will fall".

15 July 2025
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New energy laws are transforming the Geneva and Vaud real estate markets


In a recent interview with Le Nouveau Genève magazine, Emanuel von Graffenried, director of BN Conseils, analyzes the major challenges that energy renovations are posing for rental property owners in French-speaking Switzerland.

With new regulations coming into force, the real estate sector is facing unprecedented challenges that require a strategic and thoughtful approach. This interview sheds light on the crucial issues of energy transition in local real estate.

The impact of new energy laws on rental real estate


Emanuel von Graffenried, Director of BN Conseils within the Bernard Nicod Group, analyzes the consequences of recent legislative developments on the Geneva and Vaud real estate markets. According to him, these new regulations are putting significant pressure on owners, particularly those of older buildings, who are often faced with the need for heavy thermal renovations.

The cantons of Geneva and Vaud have recently tightened their energy efficiency requirements, forcing owners to rethink their investment strategy. This energy transition is both a financial challenge and an opportunity to improve the asset value of real estate.

Energy renovations: between legal obligations and opportunities


The new legal obligations linked to energy renovation are creating strong pressure on owners. How can they adapt to these changes?

The current situation is complex: around 2,500 buildings in French-speaking Switzerland are affected by these new requirements. Owners are facing a major turning point in the history of real estate, having to choose between several strategic options.

Strategic choices for owners
Owners of older buildings have several choices:

Renovate the existing: This option involves modernizing the building by replacing failing elements (boiler, roofing, insulation) to improve its energy efficiency. However, after several renovation cycles, the building may lose its architectural coherence.

Demolish and rebuild: Faced with too much work, some owners opt for complete demolition and rebuilding, but then don't preserve the existing and prefer to renovate more efficiently.

Sell the property: For owners not wishing to invest heavily, selling becomes an attractive option, particularly when the sums involved are substantial.

The financial consequences of thermal renovations


Impact on rents and charges
Contrary to popular belief, energy renovations will not necessarily lead to an immediate increase in rents. Emanuel von Graffenried explains that "the gross rent will increase, but the charges will certainly reduce", meaning that the net price to be paid by the tenant remains relatively stable.

This approach enables landlords to pass on part of the investment while offering tenants considerable energy savings. In the long term, this strategy proves to be a win-win situation for all parties involved.

Key figures for the Geneva real estate market


- 60% of buildings in Switzerland still lack sufficient thermal insulation
- 38,000 buildings to be renovated over the next few years
- Average cost of 12,000 buildings in Geneva representing major renovations - 26,000 buildings in the canton of Valais have made energy improvements.


Risks and opportunities in the real estate market


Risks of non-compliance
Property owners who fail to carry out mandatory renovations face progressive penalties. At this stage, the public authorities have not yet decided on definitive sanctions, but it is likely that fines will be introduced.

The opportunity of the energy transition
The energy transition in real estate represents a unique opportunity to improve the quality of the Swiss building stock. Non-renovated buildings are likely to suffer significant depreciation, while renovated properties will see their value increase.

Investment strategies for owners


Technical and asset analysis
Before any decision, BN Conseils recommends an in-depth technical and asset analysis. This assessment helps determine the best strategy: renovate, demolish-rebuild or sell.

Financing renovations
For multi-owners, financing solutions are crucial. Energy renovations represent a major investment, but the energy savings generated and the improved asset value offset these costs in the medium term.

Future prospects: towards 2040
Professional support
The Bernard Nicod Group, through its BN Conseils branch, supports homeowners in this energy transition. Technical expertise and local market knowledge help optimize investments and maximize the profitability of renovations.

Conclusion


Property energy renovations are a major challenge, but also an exceptional opportunity to modernize the Swiss building stock. With the right professional support, owners can turn these legal obligations into sustainable competitive advantages.

The transition to more sustainable real estate requires a strategic approach and targeted investments, but in the long term it guarantees improved energy performance and significant asset enhancement.

 

For more information on energy renovations and personalized support, contact the experts at BN Conseils.