Collective energy diagnosis and multi-year works plan: where do condominiums stand in 2026?

The collective DPE timetable

Stemming from the 2021 Climate and Resilience law, the collective DPE was rolled out in stages by condominium size:

It applies to residential buildings whose building permit was filed before 1 January 2013. It is valid for ten years. According to an industry source its cost is between €1,000 and €5,000, shared by ownership shares, and no direct penalty is provided at this stage; the individual DPE is still required to sell or rent a unit. In overseas départements the deadline is reportedly 1 January 2028 (a single source).

How many condominiums are concerned?

According to the national registration register (RNIC, 2026), the breakdown by size is:

The last stage therefore affects the vast majority of condominiums, often run without a professional syndic or by a volunteer syndic. More than 70% of condominiums with a known construction period were built before 1975 (see our portrait of the stock): many are likely to get an unfavourable rating.

The multi-year works plan (PPT)

The PPT, which schedules necessary works over ten years, is mandatory for condominiums over fifteen years old. It was rolled out in stages like the DPE; according to sources the timetable has been complete since 1 January 2025 for condominiums of 50 units or fewer. The collective DPE feeds directly into this plan: the two are best prepared together.

A change of calculation ahead

The electricity conversion coefficient used in the DPE fell from 2.3 to 1.9 on 1 January 2026. According to the Banque des Territoires, an order of 19 August 2026 lowers it to 1.7 on 1 January 2027. This mechanically improves the rating of electrically heated homes (about 50,000 condominiums cite electricity), and might lead some condominiums to postpone their diagnosis. A DPE carried out before that date remains valid for ten years.

What to do now

• Check whether your collective DPE is done: if it is missing, put it on the next meeting's agenda.
• Compare quotes from certified diagnosticians.
• Tie the DPE to the PPT so you produce a single works programme.
• Follow the Relance Logement bill, which could make voting on works easier (our analysis).

Sources

• Laforêt — DPE collectif en copropriété 2026
• 544.fr — Copropriété 2026 : ce qui change vraiment
• Banque des Territoires — Les grands changements du DPE et de MaPrimeRénov'

Informational article based on commentaries (Laforêt, 544.fr, Banque des Territoires); size data from the RNIC 2026 (dissolved condominiums excluded). Official texts should be checked on Légifrance. Not legal advice.