A real estate project in France is based on three technical pillars: financing capacity, regulatory obligations related to the property, and the legal framework of the transaction. Each pillar follows specific rules, some of which have changed recently. Understanding these mechanisms before consulting an advertisement or a bank helps avoid roadblocks along the way.
HCSF Standards and Debt Ratio: The Framework That Conditions Any Real Estate Purchase
Before discussing budget or location, the first regulatory lock to know is crucial. The High Council for Financial Stability imposes a debt ratio capped at 35% of net income, including borrower insurance. This binding standard mechanically limits the amount that can be borrowed, regardless of the household’s remaining disposable income.
The maximum repayment period is set at 25 years (27 years for a purchase in VEFA or with significant renovations). Banks have a margin of exemption on part of their credit production, but this flexibility is primarily reserved for first-time buyers and the purchase of primary residences.
To find all the useful information on Immo Guide, each step of the financing is detailed according to the type of project.
In practice, the calculation of borrowing capacity starts from stable income (salaries, pensions, recurring rental income) from which fixed expenses (ongoing loans, alimony) are subtracted. The result, multiplied by 0.35, gives the maximum monthly payment. Since 2025, the production of real estate credit has increased by nearly 30% after two years of contraction, a sign of a market regaining oxygen on the financing side.
First-Time Buyers in 2026: The Dominant Profile of the French Real Estate Market
First-time buyers today represent the main driver of transactions. Between March 2025 and March 2026, 44.6% of sales were made by first-time buyers, compared to 38.7% by second-time buyers. This shift changes the market dynamics on several levels.
Competitive pressure is focused on properties that meet this target: two to three-room apartments in urban areas, houses with small gardens in the first ring. Sellers who position their property in this segment find buyers more quickly, provided the price remains compatible with the borrowing capacities framed by HCSF standards.
For eligible first-time buyers, the PTZ remains a significant financing lever. According to available data, about one in two loans taken out by a first-time buyer in 2026 includes a zero-interest loan. This scheme, reserved for the purchase of new or old housing with renovations under income conditions, reduces the overall monthly payment and improves the debt ratio presented to the bank.
Energy Performance Diagnosis and Energy Audit: Obligations Before Sale
Any real estate purchase project involves reading the DPE. This diagnosis, mandatory for any sale or rental, classifies the housing from A (very efficient) to G (thermal sieve). Since 2025, the regulatory calendar has been gradually tightening:
- Properties classified as G have been banned from rental since January 2025, pushing their owners towards sale, often at a discount.
- Properties classified as F will follow the same ban by 2028, and then those classified as E by 2034.
- A energy audit is mandatory for the sale of individual houses and buildings in single ownership classified as F or G, with gradual extension to class E.
The energy audit goes further than the DPE: it offers costed renovation scenarios to improve the property’s performance. Its validity period is five years. For a buyer, this audit serves as a concrete negotiation tool, as it allows estimating the renovation budget before making an offer.
A property classified as E or F for sale today is not necessarily a bad choice. The purchase price often includes a discount related to the energy class, and renovation works may benefit from aids (MaPrimeRénov’, eco-PTZ). The price gap between a renovated property and one needing renovation sometimes finances most of the works.
Notary Fees and Signing: What the Overall Budget Must Include
The displayed price of a property does not correspond to the actual acquisition cost. Notary fees, often referred to as acquisition costs, represent a significant part of the budget, varying according to the nature of the property:
- In the old market, these fees are around 7 to 8% of the sale price. They cover transfer duties, notary fees, and administrative expenses.
- In the new market (VEFA), the fees are reduced, generally between 2 and 3% of the price, as transfer duties are calculated differently.
- Agency fees, when they exist, are added to the net seller price and increase the overall budget without always appearing in the advertisement.
The notary intervenes at two key moments: the signature of the preliminary sales agreement, which opens a ten-day withdrawal period for the buyer, and then the signing of the authentic deed, which transfers ownership. Between these two steps, the notary verifies the legal situation of the property (mortgages, easements, urban compliance).
The time between the preliminary agreement and the final deed is generally three months. This period allows the buyer to finalize their loan offer and the notary to complete the mandatory checks. A loan refusal during this period constitutes a classic suspensive condition, allowing the deposit to be recovered.
A well-structured real estate project starts with financing, goes through the technical reading of the property (DPE, audit, diagnostics), and ends with a notarial deed whose every line has patrimonial consequences. The solidity of the financial setup remains the factor that secures all subsequent steps.