A property owner starting renovation work in September 2026 is no longer operating under the same regulatory framework as six months ago. Since September 1st, decree n° 2026-822 has removed several common operations (insulation, ventilation, thermodynamic water heaters) from the MaPrimeRénov’ “by gesture” pathway, which changes the game regarding the sequencing of a project and its financing. Before even discussing budget or scheduling, one must realign their project with the aids that are actually available.
MaPrimeRénov’ Reform September 2026: Concrete Impact on a Project
On the ground, the direct consequence is simple: a quote signed before verifying the aids can cost several thousand euros more. The works still eligible for the “by gesture” pathway are now limited to certain heat pumps, connections to a heat network, and the removal of an oil tank, among other restricted operations.
For homes rated F or G on the energy performance certificate (DPE), access to the “by gesture” pathway is extended until December 31, 2027. However, the requirement to provide a DPE for these gestures is postponed until January 1, 2028. This delay creates a window during which one can still act gesture by gesture on an energy sieve, provided they do not delay.
The other point to watch concerns the DPE itself. Starting in 2027, the calculation method will become more favorable for homes heated by electricity. Therefore, it is important to avoid comparing a DPE from before and after the reform as if the improvement came solely from the work done. When selling after renovation, this is a selling point that must be substantiated.
To delve deeper into the types of work and their current framework, one can learn more on the 123 Net Immo website, which details the various categories of real estate interventions.
Real Estate Work Budget: Items That Are Systematically Underestimated
Competitors all talk about “planning a realistic budget.” In a real project, the problem is not the initial estimate; it’s what we forget to include.
Indirect Costs and Off-Quote Expenses
The quote from a tradesperson covers their service and materials. It generally does not cover the rental of a dumpster, parking fees for a crane truck in the city center, additional diagnostics (asbestos before work, lead in paints for an old building), or the final cleaning of the site.
- Electrical compliance, often discovered during the project when walls are opened, can represent a significant cost if the panel is several decades old
- Temporary relocation or furniture storage costs, rarely budgeted, add up as soon as the project touches the kitchen or bathroom
- Fees for an architect or project manager, when the area exceeds the regulatory threshold or the project modifies the façade, are not optional
Planning a safety margin on the total budget is not generic advice: it is the only way to absorb these discoveries without halting the project midway.
Order of Payments and Staging
One point that feedback from the field confirms: never pay the full amount of an item before acceptance. The common practice is to pay a deposit upon signing, an interim payment halfway through the project, and the balance after resolving any reservations. When a tradesperson asks for more than half the amount before starting, it is a warning sign.
Co-ownership and Work: A Collective Framework That Constraints Individual Projects
In co-ownership, one can no longer reason solely at the scale of their apartment. The multi-year work plan (PPT) is now mandatory for co-ownerships of a certain size. This document plans interventions on the structure, common areas, and the building envelope over several years.
In practical terms, if the PPT plans for facade insulation in two years, undertaking interior insulation of one’s apartment today at their own expense could potentially mean paying twice for a lesser result. Consulting the PPT of one’s co-ownership before any personal quote avoids this type of duplication.
The general assemblies also vote on the work fund, which is replenished each year. This fund, sometimes perceived as an unnecessary charge, finances heavy interventions without sudden calls for funds. When purchasing in co-ownership with a renovation project, checking the status of this fund and the contents of the PPT is part of the financial analysis, just like current charges.
Choosing Your Tradespeople and Materials: Operational Criteria
Labels and certifications (notably RGE) remain a basic filter, especially because they condition access to aids. On the ground, the reliability of a tradesperson is also measured by practical details.
- A tradesperson who visits the site before quoting provides a more reliable estimate than one who sends an estimate via email based on photos
- Real availability (time between signing the quote and starting) is as important as price, as a project delayed by three months shifts the entire schedule of subsequent trades
- Checking the ten-year insurance and its validity date at the precise moment of the work (not at the time of the quote) protects against claims after the project
On the materials side, the reflex to choose the cheapest often pays off during the finishing touches. A low-cost tile laid on a poorly prepared screed can crack within months. The quality of the implementation is as important as that of the material, and the two are linked: a good tradesperson will refuse to install a product they deem unsuitable.
Feedback varies on this point, but grouping lots (electricity, plumbing, plastering) with a project manager or general contractor simplifies coordination, even if the unit cost per item may be slightly higher. The gain is made in adherence to the schedule and the reduction of defects related to a lack of coordination between trades.
A well-managed real estate renovation project relies less on tricks than on a method: check the framework of aids before signing, budget for invisible costs, rely on the PPT in co-ownership, and select participants based on concrete criteria rather than just price. The rest is project monitoring week after week.
