Paris Real Estate: 2026 Energy Rules & Investor Guide

Navigating the Paris real estate market requires more than just an eye for Haussmann facades; it requires a mastery of evolving energy regulations. Since January 1, 2025, G-rated properties have been legally prohibited from new leases across the capital. In 2026, a significant recalibration of the Diagnostic de Performance Énergétique (DPE) shifted the valuation of electrically heated apartments. Here is the current state of thermal efficiency and its impact on your Parisian portfolio.

How the G-Rated Rental Ban Impacts Paris Real Estate

The first and most consequential milestone has passed. As of January 1, 2025, no new lease may be signed — for a property classified G under the DPE. One nuance worth noting: properties under 40 square meters are exempt from the rental ban itself, though they still require a valid DPE. This carve-out was designed to protect the supply of small studios in an already constrained market.

The practical effect has been significant. Many owners of G-rated properties chose to sell rather than renovate, and the rental market has absorbed a measurable contraction in available inventory, particularly at the entry level. But selling is no easy exit: with many buyers shying away from G rated (and even E rated) properties.  According to a study by the Notaires du Grand Paris, G-rated apartments are selling at discounts of approximately 12% compared to D-rated properties — and these properties are spending more time on the market as a result. For owners weighing the sell-versus-renovate decision, that discount may well be smaller than the cost of remediation.

The 2026 DPE Calculation Reform: A Significant Recalibration

Effective January 1, 2026, France has revised the method by which the DPE calculates energy consumption for electrically heated properties. The electricity conversion coefficient — the factor used to convert kilowatt-hours of electricity into “primary energy” for purposes of the rating — has been reduced from 2.3 to 1.9.

This matters because France’s nuclear-heavy electricity grid produces far fewer carbon emissions per kilowatt-hour than fossil fuels, and critics had long argued the old coefficient penalized electric heating unfairly. The 2026 reform corrects this imbalance. According to the French government, approximately 850,000 homes currently rated F or G are expected to gain at least one rating class as a result of this recalculation alone — without any renovation work.

What this means for current DPE holders

If your property has a DPE issued in 2024 or 2025, that certificate remains valid. However, owners of electrically heated properties with ratings in the F or G range would be well-served to request a free recalculation using the updated coefficient. This can be done through the ADEME platform without scheduling a new diagnostic visit. A property that moves from G to F gains a reprieve from the rental ban until 2028 — a meaningful difference for landlords weighing renovation decisions.

Note also that any DPE issued before July 1, 2021 is no longer valid under any circumstances and must be redone before a property can be listed for sale or rent.

Collective DPE Deadline for Smaller Condominiums

As of January 1, 2026, condominiums with fewer than 50 lots are now required to have commissioned a collective DPE—the final phase of a rollout established under the Loi Climat et Résilience. Larger buildings have been subject to this requirement since 2024.

The obligation applies to buildings whose permis de construire was filed before January 1, 2013. This exemption is rarely relevant for those seeking Paris real estate or other historic neighborhoods, where nearly all residential stock predates that threshold by decades and centuries.

Compliance is managed at the syndic (the designated manager) level. The resulting diagnostic forms the basis for the Projet de Plan Pluriannuel de Travaux (PPPT), the ten-year renovation roadmap. A building without a valid collective DPE faces both legal exposure and potential market friction: disclosure of building-level energy performance is now a legal requirement in the context of individual lot sales.

What Has and Has Not Changed

Despite ongoing political pressure for delays, the core rental ban schedule remains in force:

• 2025 (now in effect): Rental ban on all G-rated properties
• 2028: Rental ban extends to F-rated properties
• 2034: Rental ban extends to E-rated properties

In practice, the 2026 DPE coefficient reform has removed some urgency for owners of electrically heated properties, but owners of gas-heated apartments—common in central Paris—face unchanged pressure to renovate before the 2028 and 2034 deadlines.

New Obligations for Short-Term and Tourist Rentals

The Loi Le Meur of November 19, 2024 introduces DPE requirements for furnished tourist rentals for the first time — closing a loophole that had allowed some owners of energy-inefficient properties to shift them into short-term rental to avoid the stricter obligations already applicable to long-term leases.

How the rules apply to you depends entirely on where you stand today.

If you already hold a changement d’usage authorization, you are grandfathered. The new DPE gate does not apply retroactively, and you may continue operating your STR without any new energy performance obligation until January 1, 2034. At that point, all furnished tourist rentals — existing and new — must carry a valid DPE rated between A and D (with primary residences rented occasionally remaining exempt). The law deliberately gives existing operators a ten-year runway to plan and execute any necessary renovation work, which is particularly relevant in Haussmann-era buildings where co-ownership approval processes can stretch over years.

If you are applying for a new changement d’usage authorization —  the DPE requirement applies immediately. As of November 21, 2024, any new application must be accompanied by a valid DPE rated between A and E. Properties rated F or G will be denied authorization outright. Starting January 1, 2034, the threshold tightens to A–D for new authorizations as well. But it is worth noting that it was already almost impossible and very expensive to obtain the changement d’usage authorization in Central Paris even before this new DPE requirement applied. 

If you have no authorization and aren’t required to obtain one (for example, owners renting their primary residence on a limited basis), the same 2034 deadline applies — no immediate DPE obligation, but energy compliance will be required at that date.

The same law passed in 2024 also requires all owners renting their properties for periods less than a month (whether a primary residence or secondary residence)to register with a national online registry by May 20, 2026. Further, municipalities have gained new tools to cap short-term rental authorizations, reduce the maximum rental period for primary residences (Paris has already lowered this to 90 nights per year), and designate zones reserved for primary residences.

Buying Paris Real Estate: New DPE Due Diligence

For buyers, the DPE landscape has become a meaningful variable in investment analysis. A few practical takeaways:

• Electric heating deserves a fresh look. The 2026 coefficient change means that many apartments may now benefit from a free ADEME recalculation before any renovation investment.
• G-rated properties are now priced at a discount. For buyers willing to renovate, this creates a negotiating window.
• Verify the PPT. Ensure the building has completed its collective DPE and has a renovation plan in place.

Our View

France adjusted how it calculates electric heating in 2026 — it did not change where it is going. The G-rated ban is in effect. Future deadlines remain subject to political debate, but the market has already priced in the direction of travel. That gap between regulatory uncertainty and market reality is where decisions get made — and where being well-informed matters most.

Contact Paris Property Group to learn more about buying or selling property in Paris.