Before signing a sales warrant with CLOVIS immo, you must collect a set of mandatory documents and diagnostics. This guide details everything you have to prepare — administrative documents, technical dossier, diagnostics — for immediate and compliant sale.
In France, real estate sales are strictly regulated by law. The seller is required to provide a complete record informing the buyer of the actual condition of the property. This folder — on Technical Diagnostic (DDT) file — the objective is to ensure transparency, protect the purchaser, and exempt the seller from the warranty of hidden defects when he has fulfilled his obligations.
At CLOVIS immo, we systematically request these documents before starting any marketing. A complete file from the mandate avoids delays, reassures buyers and accelerates the transaction. A missing document is a sale that can be delayed or, in extreme cases, questioned.
First of all, you have to prove that you own the property and have the right to sell it. These documents form the legal basis for any transaction.
DDT consists of all the technical diagnostics required according to the age, location and nature of the property. These diagnoses must be performed by a Certified diagnostic — CLOVIS immo can direct you to trusted professionals in Soissons.
Energy Performance Diagnostics — consumption and GHG emissions. Validity 10 years.
MandatoryBuildings with a building permit prior to 1 July 1997.
By yearBuildings built before 1949. Validity 1 year if lead is present.
Before 1949Electrical installation over 15 years old. Validity 3 years.
+15 yearsInstallation of gas over 15 years old. Validity 3 years.
+15 yearsState of Risk and Pollution. Validity 6 months — compulsory for all goods.
MandatoryIf the property is in the area concerned by prefectural order. Check the map for the Aisne.
Depending on areaFor goods not connected to the public network (septic base, individual sector).
Non-collectiveCertified private area for any lot in condominium.
PropertyMandatory in addition to the ECD for E, F or G-class dwellings.
DPE E, F or GLignivore fungus in areas defined by prefectoral decree.
Depending on areaDiagnosis of asbestos in the common areas for collective buildings before 1997.
Property| Document / Diagnostic | Status |
| Title of property / cadastre extract | Mandatory |
| ID + co-owner proofs | Mandatory |
| Cadastral references + mass plane | Mandatory |
| DPE — Energy Performance Diagnostics | Mandatory |
| ERP — State of Risk and Pollution | Mandatory |
| Diagnosis Asbestos (permitted before 01/07/1997) | As appropriate |
| Diagnostic Lead / CREP (construction before 1949) | As appropriate |
| Diagnostic Electricity (installation + 15 years) | As appropriate |
| Diagnostic Gas (installation + 15 years) | As appropriate |
| Diagnostic Termites / Merules (area concerned) | Depending on area |
| Non-collective sanitation | As appropriate |
| Carrez law (ownership plot) | Property |
| Energy audit (EPD E, F or G) | According to DPE |
| History of work & authorizations / permits | Recommended |
| Interior plans & old descriptions | Recommended |
| Co-ownership documents (regulation, PV AG, charges) | Property |
You contact CLOVIS immo for a sale. Jérôme Drouet sends you this detailed checklist and answers your first questions about the pieces to be assembled.
You collect the required documents — title, existing diagnostics, plans, authorizations. If some diagnostics are to be performed or renewed, we will direct you to certified diagnostics.
You send us the documents (scan or paper copies). Jérôme Drouet checks the validity of each piece, identifies any deficiencies and informs you of the necessary supplements.
Complete and validated file, we write the sales mandate, set the marketing price and start marketing. Your property is ready to be presented to buyers in the best conditions.
The full file remains available for the notary throughout the transaction. CLOVIS immo ensures the link between all parties until the final signature at the notary.
Contactez CLOVIS immo — Jérôme Drouet analyse votre situation, vous aide à constituer votre dossier et vous accompagne jusqu'à la signature.

