The French real estate market has been going through a recalibration period for several months. Credit rates are stabilizing after a phase of decline, the regulatory timeline on thermal sieves is tightening, and both buyers and investors must navigate sometimes contradictory signals. Successfully completing a real estate project during this time requires mastering a few technical parameters that have shifted in importance.
Electricity conversion coefficient and DPE: a discreet parameter that changes the game
Among the recent developments, the change in the electricity conversion factor in the calculation of the DPE often goes unnoticed. Decree No. 2026-596 of July 6, 2026, has lowered this coefficient, which mechanically improves the energy label of some homes heated by electricity.
Specifically, an apartment classified as F with recent electric heating can shift to E after recalculation. This shift has direct consequences: the property remains rentable for longer, and its resale value is preserved. For a buyer, having the DPE recalculated after July 2026 may reveal a better label than the one displayed in the listing.
This modification also changes the renovation strategy. Investing in heavy insulation for an already reclassified electric property becomes less urgent. In contrast, properties heated by gas or oil do not benefit from this adjustment and remain subject to the same constraints.
The analyses published on the real estate portal of Zenith Actu allow tracking these regulatory developments and their concrete effects on prices by geographic area.
Mortgage rates in 2026: stabilization changes the negotiation rules
After the sharp rise in 2023-2024 followed by a gradual decline, rates are stabilizing around 3.3% to 3.5% over 20 years in the summer of 2026. Some bank scales even show a slight rebound in recent months, which contrasts with the prevailing narrative of a continuous decline.
This stabilization has a direct consequence on borrowing capacity: it no longer improves from one quarter to the next. Waiting for an additional drop to buy carries the risk of seeing prices rise again in tight areas while rates stagnate.
What banks value in a file
The maximum debt ratio remains set at 35% by the recommendations of the High Council for Financial Stability. Banks apply this limit strictly. However, the quality of disposable income and professional stability allow for negotiation on other levers:
- The loan term can be extended to 25 years (27 years for new builds with a deferral) to maintain an affordable monthly payment, provided the borrower’s profile is solid.
- Borrower insurance remains an underestimated negotiation item: a well-chosen insurance delegation can reduce the total cost of credit by several thousand euros over the term.
- Even modest personal contributions change the bank’s perception of risk and can trigger a discount on the proposed rate.
Comparing credit offers from at least three institutions remains the most profitable approach before signing. Using a broker is particularly justified for atypical files (self-employed, variable income, purchase in SCI).
Timeline for thermal sieves: what is already in effect and what is still scheduled
Properties classified G in the DPE are prohibited from being rented since January 1, 2025. This prohibition is effective, not theoretical: leases signed or renewed after this date must pertain to a property classified F or better.
The timeline then provides for the prohibition of properties classified F starting in 2028, and then E in 2034. No additional grace period was visible in the texts published in the summer of 2026. For landlord owners, the countdown is tight on properties classified F.
Rental investment: balancing between renovation and resale
A property owner with a classified F property has two options. Renovate to reach at least class E, which may require a substantial renovation budget (insulation, heating system change, ventilation). Or sell before 2028, accepting a discount related to the label.
The choice depends on the local market. In a city where rental demand is strong, renovation pays off in a few years thanks to maintained rents. In an area where prices are low and vacancy rates are high, selling may limit losses.
Real estate market in Île-de-France: a recovery that remains fragile
In Île-de-France, data from the second quarter of 2026 describe a market still marked by slowness and caution. Transaction volumes struggle to return to pre-2022 levels, even if prices stabilize in most departments.
Buyers in Île-de-France face a paradox: rates are no longer decreasing enough to offset still high prices, and sellers are slow to adjust their expectations. This situation creates a market where properly priced properties sell, while others stagnate.
For first-time buyers, the zero-interest loan remains a complementary financing lever. Its scope has evolved in recent years, and the eligibility conditions (income ceilings, geographic areas, type of property) deserve an updated check before any financial arrangement.
Field feedback diverges on the market trajectory for the coming months. Some professionals anticipate a moderate recovery driven by constrained housing demand, while others emphasize that caution could last as long as financing conditions do not improve significantly. A well-calibrated real estate project relies on local data, not national averages.
