
A couple signs a sales agreement for an apartment. Three weeks later, the energy performance diagnosis (DPE) shows a rating of G, and renting it out will be impossible without major renovations. This scenario has been multiplying since G-rated properties have been banned from rental in metropolitan France. The real estate project is no longer solely about price: energy performance, the strength of the financial file, and hidden costs weigh as heavily as negotiation.
DPE and energy rating: the filter to check before any visit
Even before stepping through the door of a property, one looks at the energy performance diagnosis. A rating of F or G radically changes the financial equation, as it implies energy renovation work before any rental can take place and affects the resale value.
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The gradual reform of the DPE has strengthened its legal reliability. A poor rating can now lead to litigation if the buyer proves that the diagnosis was incorrect at the time of sale. Therefore, one checks the validity date of the DPE and compares the announced rating with the actual state of insulation, heating system, and ventilation.
In practical terms, a property rated E or better limits mandatory work and preserves the profitability of a rental investment. For a primary residence, the rating remains a negotiation lever for the price: a seller with a G rating knows that the buyer will have to finance a renovation. One can rely on platforms like lecomptoirdelimmobilier.fr to cross-reference listings and quickly identify properties whose energy profile matches their actual budget.
Further reading : The keys to successfully purchasing real estate with peace of mind in 2024

Mortgage application: what makes the difference with the bank
Brokers have confirmed for several months: the quality of the borrower’s file weighs more than the theoretical debt capacity. A debt ratio below the regulatory threshold is no longer sufficient. The bank wants to see a coherent personal contribution, residual savings after purchase, and a stable professional trajectory.
One prepares the file well before the first visit. Three points can sway a banking decision:
- The personal contribution, ideally calibrated to cover at least the notary fees and part of any potential work. The stronger the contribution, the wider the negotiation margin on the rate.
- The consistency between the property’s price, predictable charges (property tax, co-ownership, energy), and the monthly disposable income. An overly optimistic simulation triggers a refusal.
- The delegation of borrower insurance, which allows for a significant reduction in the overall cost of credit compared to the group contract offered by the bank.
A complete file from the first meeting speeds up processing. Feedback varies on this point, but several financing networks report that an incomplete file extends the response time by several weeks, which can result in losing a property in a tight market.
Additional costs of a real estate purchase: items that negotiation does not cover
One negotiates the displayed price, but forgets the rest. However, additional costs represent a significant part of the actual acquisition budget.
Notary fees and taxation
For an older property, notary fees absorb a substantial part of the price. They are included right from the loan simulation, not after signing the agreement. In new builds, these fees are reduced, but other costs arise (connections, finishes).
Co-ownership charges and property tax
Request the last three minutes of the general assembly before signing anything. This will reveal the voted works, upcoming calls for funds, and any potential unpaid dues. The property tax varies significantly from one municipality to another for comparable properties.
Post-acquisition work
A property that requires energy renovation to move out of a F or G rating generates a work budget that should be estimated before the purchase offer, not after. Getting a quote from a RGE craftsman before signing the agreement provides a concrete argument for negotiating the price and secures access to public aid.

Suspensive clause and sales agreement: protections to activate
The sales agreement is not a definitive commitment. The buyer has a legal withdrawal period after signing, and above all, the suspensive clauses allow for disengagement without penalty if certain conditions are not met.
The suspensive clause for obtaining a loan is the most well-known, but others can be added:
- Obtaining a building permit or work authorization if the project includes an extension or facade modification.
- Absence of servitude or preemption by the municipality, verifiable with the notary before the final signature.
- Satisfactory results from a complementary diagnosis (asbestos, lead, termites depending on the geographical area).
Each suspensive clause must be drafted with a precise timeline and measurable criteria. A vague clause protects no one. One asks the notary to review each condition before signing the agreement and keeps a copy of all documents submitted.
Coordination between the notary, the bank, and the real estate agent remains an underestimated point. A financing delay that exceeds the timeline of the suspensive clause can turn a protection into a trap. One aligns the banking deadlines with the notary as soon as the agreement is drafted.