Free DPE toolkit
Understand, simulate and improve your DPE
7 tools powered by the ADEME database (14M+ diagnostics) and the official 3CL-2021 method. Free to start, no account needed to try.
14M+ ADEME diagnosticsOfficial 3CL-2021 methodFree to start
Start here
DPE Verification
Check your diagnostic's reliability and automatically detect anomalies.
- 40+ technical checks
- Reliability score /100
- Fraud detection
Analyze
Understand and validate an existing DPE
Related articles
Collective vs individual EPC: what condominium owners need to know
In condominiums, collective and individual EPCs coexist but produce distinct legal effects. Obligations, class divergences and consequences for landlords, sellers and buyers.
EPC and mortgage financing: when the energy rating blocks or increases the cost of your loan
A property rated F or G can lead to mortgage refusal, reduced loan amounts or mandatory renovation clauses. What banks actually assess — and how to prepare.
Inaccurate EPC: from €80 in fees to €40,000 in damages — what case law says now
An inaccurate EPC can cost tens of thousands of euros to the buyer or landlord. Diagnostician liability, types of damages, amicable and judicial remedies.
Sources
ADEME database (14M+ diagnostics) · Official 3CL-2021 method · French Notaires 2024 study · 2026 official rates