Improving your home on a daily basis is no longer just about a few coats of paint or decluttering closets. Since 2025, the French regulatory framework requires homeowners, both landlords and occupants, to rethink their housing from the perspective of energy performance. The energy performance diagnosis (DPE) now conditions rental agreements, the property’s market value, and access to certain public aids. This context changes the very nature of the work to be considered.
DPE and rental bans: what the climate law imposes on property owners
Since January 1, 2025, properties rated G can no longer be rented or have their leases renewed in metropolitan France. Class F will follow in 2028, and class E in 2034. This evolution transforms energy renovation into a legal obligation for all landlords.
A poorly rated property on the DPE loses value upon resale and gradually becomes unlettable. This observation applies to both individual houses and apartments in co-ownership.
For owner-occupiers, the stakes remain thermal comfort and heating bills. For landlords, it is a matter of legal compliance. In both cases, it is preferable to approach the work as a coherent journey rather than as an accumulation of isolated small actions. You can also learn everything about Recommandons maison to identify priority areas before getting started.
Extensive energy renovation: audit, support, and DPE class improvement
The MaPrimeRénov’ scheme has evolved to encourage comprehensive renovations rather than isolated interventions. An extensive renovation requires a prior energy audit, the intervention of a certified RGE professional for the work, and a minimum gain of two DPE classes.
The audit identifies areas of heat loss (roof, walls, windows, ventilation) and prioritizes the work. For example, replacing windows without addressing wall insulation can create humidity problems due to lack of ventilation. The order of interventions is as important as their nature.
My Renov’ Accompanist: a mandatory contact
To benefit from aid for extensive renovations, the use of My Renov’ Accompanist is required by the scheme. This trusted third party supports the household from the audit to the completion of the work. Their role is to verify the coherence of the project, avoid redundant work, and ensure that craftsmen intervene in the correct order.
Field feedback varies on the availability of these accompaniers depending on the regions. Some rural areas experience longer waiting times, which can delay the start of a project. Anticipating this step by several months remains a useful precaution.
Co-ownership and collective DPE: a deadline not to be missed
Co-ownerships with fewer than 50 lots are subject to the obligation to carry out a collective DPE before January 1, 2026. This diagnosis covers the entire building and conditions common work (facade insulation, replacement of the collective boiler, roof renovation).
In co-ownership, decisions about work are made through a vote at the general assembly. The property manager plays a central role in setting the agenda and presenting quotes. An isolated co-owner cannot unilaterally decide to insulate the facade or change the collective heating system.
Preparing for the vote at the general assembly
Obtaining a majority for energy renovation work requires presenting co-owners with a detailed file: total cost, remaining charge after aids, estimated savings on charges. The available data does not always guarantee a quick return on investment, but the prospect of a rental ban for poorly rated lots is a tangible argument.
- Have the collective DPE carried out by a certified diagnostician before the regulatory deadline
- Ask the property manager to include the issue of energy renovation on the agenda for the next general assembly
- Consult specific aids for co-ownerships through the co-ownership section of MaPrimeRénov’
- Check the DPE classification of individual lots to anticipate rental restrictions
Insulation, heating, and ventilation: the three areas that change the DPE class
Among all possible works, three areas concentrate the majority of energy gains. Thermal insulation of walls and roofs reduces most heat loss in an older home. The roof alone can represent the primary area of thermal loss in an individual house.
Replacing an old heating system with a heat pump or pellet stove improves performance, provided that the building envelope is treated in parallel. Installing efficient heating in a poorly insulated home is akin to heating the outdoors.
Ventilation: the blind spot of partial renovations
Enhanced insulation without appropriate ventilation causes condensation and promotes the growth of mold. Controlled mechanical ventilation (VMC) with double flow recovers heat from the extracted air to preheat the incoming air. This system limits energy losses related to air renewal.
Older homes equipped with simple natural ventilation grilles are not designed to function with very high-performance insulation. Adding a VMC is part of the work to be integrated from the audit phase, not as an afterthought.
Heritage value and DPE: an increasingly direct link
The DPE now influences the selling price of a property. Recent market analyses link the energy label to a measurable discount or premium. A property rated A or B sells for more than an equivalent property rated F or G, all else being equal.
For an owner-occupier without an immediate selling project, this question may seem secondary. However, a renovated property retains its value in a market where energy-inefficient properties depreciate. Integrating this heritage dimension into the decision to renovate allows for a consideration beyond mere comfort.
Improving your home on a daily basis today involves a careful reading of its DPE and planning the work according to regulatory deadlines. Aids are available, as are accompaniers, and the first rental bans are already in effect.
