The DPE now determines the legal and financial feasibility of a real estate project, far beyond its role as an energy indicator. Since January 1, 2025, homes rated G are excluded from the rental market for new leases, with an extension to class F in 2028 and E in 2034. Any purchase or rental investment project must incorporate this constraint from the initial property analysis.
DPE and small spaces: a recalculation that changes the game for rental investment
A 2024 decree has corrected the calculation method of the DPE for homes under 40 m², modifying the weighting of heating and hot water. This correction is not trivial: a studio rated F can shift to E after recalculation, which postpones the rental prohibition deadline by several years.
We recommend systematically checking whether the energy label of a small property has been established according to the corrected method. Relying on an old diagnosis without this verification exposes one to an overestimation of the renovation budget, or worse, to a purchase whose profitability relies on an outdated rating.
This point remains largely underestimated by buyers and even by some professionals. The market value of a studio in the city center directly depends on its updated DPE label, which determines its rental potential. Several real estate articles on ARTS Constructions detail the concrete implications of these regulatory changes on asset management.
Multi-year work plan in co-ownership: the financial risk that buyers ignore
Co-ownerships of buildings over fifteen years old must now establish a multi-year work plan. This document commits co-owners to a program of insulation, replacement of communal boilers, or roof repairs, with a schedule and mandatory financial provisioning.
For a buyer, purchasing a unit in a co-ownership without consulting this plan amounts to ignoring a potential charge of several thousand euros per year. The multi-year plan alters the structure of projected charges and can render an investment unprofitable in the initial years.
What to check before signing
- The existence and content of the multi-year work plan, which specifies the nature of the planned interventions and their timeline
- The amount of the work fund already established by the co-ownership syndicate, and the level of anticipated calls for funds
- The consistency between the scheduled work and the DPE rating of the building, as an insufficient plan leaves the risk of a future rental prohibition on the least efficient units
We observe that sellers do not always spontaneously provide these documents during visits. Requesting the multi-year plan is part of the reflexes to acquire, just like asking for the minutes of the general assembly.
Mortgage rates and borrowing capacity: balancing between waiting and acting
After a marked increase in interest rates, the credit market is experiencing a stabilization phase. The temptation to wait for a significant drop in rates before launching a purchase project remains strong among many buyers.
This strategy carries a concrete risk: a drop in rates revives demand and drives prices up. The savings on the cost of credit can then be absorbed, or even exceeded, by the increase in the purchase price. The relevant calculation is not the nominal rate of the loan, but the overall cost of the project relative to the monthly repayment capacity.
Structuring your budget by including energy renovation works
A real estate project in 2024 is no longer limited to the purchase price and notary fees. The budget must include the cost of bringing properties up to energy standards, especially for those rated E, F, or G.
Assistance programs for renovation are regularly evolving. Some work projects could be excluded from aids like MaPrimeRénov’ depending on ongoing decisions. Anticipating the financing of works in the credit arrangement helps avoid cash flow issues after the acquisition.
DPE and litigation: a growing legal risk in sales and rentals
The DPE generates an increasing volume of disputes between sellers, buyers, and tenants. An erroneous diagnosis can lead to a claim for a reduction in the sale price or a demand for damages if the buyer discovers a real energy class lower than that announced.
On the rental side, a landlord who keeps a property rated G on the rental market after the regulatory deadline exposes themselves to sanctions and the nullity of the lease. This litigation is no longer isolated cases: it now structures real estate jurisprudence.
- Have the DPE carried out by a certified diagnostician, ensuring that the method used corresponds to the current version (notably the correction for small spaces)
- Keep all supporting documents for energy renovation works, which can be opposed in case of a challenge to the rating
- Include a suspensive clause related to the DPE in the preliminary sales agreement when the diagnosis is over two years old
The DPE is no longer a secondary administrative document: it engages the responsibility of the seller and the landlord, and conditions the medium-term valuation of the property. A successful real estate project in 2024 requires a rigorous reading of this diagnosis, cross-referenced with the co-ownership work plan and the overall budget of the operation.
