Buying real estate involves several months of procedures, often a tight budget, and technical trade-offs that most buyers discover along the way. Rather than listing generalities, this article measures the actual expense items, recent regulatory constraints related to the energy performance diagnosis (DPE), and the evolution of the size of properties sought to calibrate a real estate project suited to the current market.
Size, land, budget: what recent data reveals about real estate projects
The figures from the Ministry of Housing document a clear shift since 2024. Reservations for small houses are increasing, the average size of building plots is decreasing, and large homes are declining in purchase intentions.
This movement is significant: it reflects a budgetary trade-off. Buying smaller allows for reducing financing costs and maintenance charges over the duration of the loan.
| Criterion | Trend 2024-2026 | Impact on the project |
|---|---|---|
| Size of reserved houses | Decrease in average size | More accessible purchase price, reduced monthly payments |
| Size of building plots | Documented reduction | Lower development and maintenance costs |
| Large homes | Decrease in reservations | Potentially longer resale time in this segment |
| Small houses | Significant increase in reservations | Sustained demand, better liquidity upon resale |
This table, constructed from data relayed by BoursedesCrédits (August 2026), shows that the market is shifting towards more compact and financeable properties. A buyer who sizes their project considering this reality limits the risk of over-indebtedness.
To compare available offers in a given area, platforms like lecoin-immobilier.com allow users to cross-reference listings and evaluate prices per square meter before making a decision.
DPE and rental bans: a purchasing criterion that has become financial
The energy performance diagnosis is no longer limited to a letter on a listing. Since 2025, properties classified as G are gradually banned from rental. The following deadlines, spread until 2034, concern classes F and then E.
An energy-intensive property loses its rental capacity, thus its asset value. For an investor, buying an apartment classified as F without planning a renovation budget means acquiring an asset whose yield will mechanically drop.
What the DPE schedule changes for a purchase in 2026
The buyer must check three points before signing a preliminary agreement on an older property:
- The current energy class of the property and its validity date, as a DPE conducted before the methodological reform may underestimate actual consumption.
- The estimated cost of works to achieve at least class D, the threshold that guarantees the possibility of renting beyond 2034.
- The available aids through Anah (notably MaPrimeRénov’), whose regional envelopes vary according to territories, as shown by the key regional figures published for 2025.
On the other hand, a property already classified A or B constitutes a strong resale argument. Demand in this segment is growing, driven by buyers who incorporate energy costs into their overall budget calculation.
Financing and mortgage: the items that simulators do not show
A loan simulator displays a monthly payment. It does not show the additional costs that represent a significant part of the total budget.
The costs often underestimated during a first purchase
Notary fees (transfer duties, fees, disbursements) amount to about one-tenth of the price in the old market. In addition, there are loan guarantee fees, borrower insurance, and sometimes bank processing fees.
The actual budget for a purchase exceeds the price displayed on the listing by several tens of thousands of euros. A buyer who calculates their borrowing capacity without including these lines risks having to revise their project downwards once the preliminary agreement is signed.
Personal contribution and loan duration
Market data shows that a contribution remains a determining lever for obtaining a competitive rate. Banks value a contribution covering at least the additional costs, which avoids financing more than the property’s value.
The duration of the loan directly impacts the total cost. Extending a loan by five years can disproportionately increase interest costs compared to the reduction in monthly payments achieved. Comparing offers based on total cost (and not just nominal rate) remains the most reliable method.
Purchase offer and preliminary agreement: the steps where the project’s serenity is at stake
The purchase offer is a moral commitment, the preliminary agreement is a legal commitment. Between the two, the buyer has a negotiation lever that is often underutilized.
An offer made below the displayed price must be based on factual elements: state of the DPE, works to be planned, prices of recent sales in the same area. A reasoned offer is more likely to succeed than a simply low offer.
The sales agreement includes suspensive conditions, notably the obtaining of the loan. This period (generally set between 45 and 60 days) protects the buyer but assumes that they have already begun banking procedures before signing.
- Prepare the financing file as early as the search phase to speed up the bank’s response.
- Ensure that the loan suspensive condition mentions an amount and a rate consistent with the market.
- Read the clauses related to hidden defects and easements before signing, not after.
The visit to the notary for the authentic deed occurs several weeks after the preliminary agreement. This period allows for administrative checks (mortgages, urban planning, right of preemption). It is not negotiable, but it is predictable, allowing for planning a move or the end of a lease without overlap.
The trend towards more compact properties, the energy constraint related to the DPE, and the rigor of financial structuring form the three pillars of a real estate project that stands the test of time. Each of these items is measured, compared, and prepared even before the first visit.
