The Renovation Race: How Energy Efficiency Ratings Are Changing the French Property Market

By Jay Corless, edited by Adrian Leeds

Note: Graphics provided by SeLoger and the Journal de l’Agence.

In case you haven’t yet heard, France is in the middle of a quiet real estate revolution. It’s not about skyrocketing prices or flashy new developments—it’s about energy. More specifically, it’s about the “Diagnostic de Performance Énergétique” (DPE). This official energy efficiency rating has suddenly become a game-changer in the buying, selling, and renting of property in France.

We like to call it “the renovation race,” and believe us, it’s on.

In recent months, we’ve seen and heard about an increasing number of sellers scrambling to offload poorly rated properties before new rules take effect, while savvy buyers are swooping in with renovation budgets and an eye for long-term value. At the same time, landlords are confronting the harsh reality that their once-reliable rentals may soon be rendered legally uninhabitable without costly upgrades. This shift is reshaping the market under our feet—and foreign buyers must understand what’s really at stake.

WHAT’S THE DPE AND WHY DOES IT MATTER?

Think of the DPE as a health score for a property. It rates homes on a scale from A (very efficient) to G (very wasteful) based on energy consumption and carbon emissions. While the report has existed for years, it was, frankly, something we all used to ignore. But not anymore.

In 2021, France passed a series of laws under the “Loi Climat et Résilience” designed to encourage landlords and property owners to undertake energy upgrades. The result? Properties with an F or G rating—nicknamed “passoires thermiques” (energy sieves)—are being phased out of the rental market.

Here’s the current timeline:

– As of January 2023, properties with a G rating can no longer be legally rented if their annual energy usage exceeds a certain threshold.

– By 2025, all G-rated properties will be banned entirely from the rental market.

– F-rated homes will follow in 2028, and E-rated properties in 2034.

That’s not far off, especially if you’re considering buying a rental investment or want to preserve future resale value. Suddenly, that charming old apartment with original windows and a quirky old radiator system might be more of a liability than a treasure.

WHAT THIS MEANS FOR BUYERS AND SELLERS

Here’s the good news: this shift is creating opportunity, especially for expat buyers.

Older apartments with low DPE scores are being offered for sale at reduced prices as French sellers (many of whom are reluctant to undertake renovations) seek to exit before their properties become unappealing to buyers. If you’re handy—or have a good renovation team—you can buy low, renovate smart, and potentially watch your investment grow dramatically in both value and rental eligibility.

Imagine this: you’re looking at a cozy 35-square-meter apartment in the Marais in Paris, tucked away on the third floor of a charming 18th-century building. The location is unbeatable, and the bones are beautiful, but the DPE rating is a miserable F. The seller is motivated—he can no longer rent it out, and he doesn’t want to handle the renovation. You negotiate a price that’s 10–15% below the market rate. With a carefully planned renovation—upgrading insulation, replacing the old windows, and installing an efficient heating system—you could bring the property up to a D rating. Voilà: it’s now rentable, more comfortable, and far more valuable on the resale market.

Now picture a similar scenario in Nice, in the Musiciens quarter, just a 10-minute walk from the Promenade des Anglais. A sunny two-bedroom apartment with high ceilings and balconies is on the market. Still, it’s rated G. French buyers walk away, daunted by future rental restrictions and high utility bills. But as a buyer with a vision—and the right advisors—you recognize the potential. You secure a solid deal, then invest in double-glazed windows, a reversible heat pump, and improved insulation. The energy rating improves, your summer comfort increases, and you’ve created a high-demand, long-term rental or seasonal home that future buyers will envy.

The bottom line? Whether you’re buying or selling, the DPE is no longer a minor footnote—it’s a defining factor. Understanding how to work with it, not around it, is the key to unlocking real value in the current French property market.

RENOVATING FOR ENERGY EFFICIENCY: WHAT COUNTS?

Here’s where things get technical—but also practical. Not all upgrades are equal in the eyes of the DPE gods. Some of the most impactful renovations include:

– Insulation: Attics, walls, and floors. Thermal insulation is key.

– Double- or triple-glazed windows: This is often a must-do.

– Replacing old heating systems: Swapping out that ancient electric radiator for a heat pump or gas-condensing boiler can make a huge difference.

– Ventilation: Installing a proper VMC (ventilation system) can help boost your score and prevent mold growth.

A good diagnostician can simulate to show how specific upgrades will improve your rating before you begin. And if you don’t speak French or know where to start, that’s exactly where our team can step in—we’ve been through this race more times than we can count.

CONCLUSION: WHAT IT MEANS FOR YOU—AND WHAT TO DO ABOUT IT

Let us be blunt: this is not something you can afford to ignore. If you’re coming from North America, you may be used to inspections being more of a formality than a dealbreaker. But in France, energy efficiency now defines the playing field. The DPE doesn’t just affect utility bills—it shapes everything from what you can legally rent to how easily you can sell later on.

Buying a property with an F or G rating isn’t necessarily a mistake, but it means you need a plan. That plan might include negotiating the price, budgeting for upgrades, or simply understanding that your rental options will be limited until improvements are made. What matters is going in with your eyes wide open.

And don’t assume this only applies to investors. Even if you plan to live in the property yourself, an outdated energy rating will impact your comfort, costs, and resale value. Future buyers—especially those from France—are already prioritizing energy scores in their searches, and regulations are only tightening.

That’s why we urge our clients to look beyond the floor plan and the parquet. Consider insulation, heating systems, windows, and the necessary steps to bring the energy label up to code. The great news? There are incredible deals to be found if you’re willing to take on a little work. And, we know how to help you make it happen.

So, whether you’re buying your dream pied-à-terre or searching for a solid investment, make sure your property not only looks good but also performs well. The renovation race is here, and it’s moving fast. If you’re ready to run it smartly—and with support—you know where to find us.

A bientôt,