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The vendor must provide a technical diagnostic package including:
  • the state of the indoor electricity installation;

  • the state of the "natural" natural gas installation;

  • the risk of exposure to lead (CREP);

  • a statement of the presence or absence of materials or products containing asbestos;

  • the condition relating to the presence of termites in the building;

  • the state of natural and technological risks;

  • the status of non-collective sanitation facilities;

  • Diagnosis of energy performance of buildings (DPE).

What are the obligations of the lessor?

The lessor must provide, at the time of signature or renewal of a lease, a technical diagnostic file including:

  • the state of the indoor electricity installation;

  • the state of the "natural" natural gas installation;

  • the risk of exposure to lead;

  • the state of natural and technological risks;

  • the energy performance diagnosis;

By whom are these diagnoses made?

The technical diagnostic dossier (except, however, the state of natural and technological hazards and the state of the non-collective sanitation installations) must be drawn up by professionals with guarantees of competence and with appropriate organization and means. Diagnosticians must have a certificate of competence issued by a certification body which is itself accredited. This certificate ensures that the diagnostic skills of consumers are maintained and maintained.

Diagnosticians are required to take out professional liability insurance.

Lastly, they shall have no relationship liable to impair their impartiality and independence or with the owner or his agent or with an undertaking able to carry out work on the works, installations or equipment for which they are required One of the documents mentioned in the technical diagnostic dossier.

The public non-collective sewerage service (SPANC) shall establish or cause to be established the condition of the non-collective sanitation facilities.

The state of natural and technological risks is established directly by the seller or the lessor, if necessary with the help of a professional of his choice.

How to Find a Diagnoser?

Certification bodies shall make available to the public the list, contact details and skills of the certified diagnostic practitioners./

A directory contains a list of all persons holding a valid certification. You can check the validity of a certificate from its number. You can also view the list of certified diagnosticians within a certain perimeter around a given location, or list by company./

The information is updated very regularly. Contact the certifying body concerned for any alert or request for correction./

Real estate professionals involved in the sale or lease of property can also help you to verify that the diver complies with the conditions of competence, assurance, impartiality and independence required./

Sanctions are provided for in the Building and Housing Code for persons who make the diagnosis required by law without respecting the conditions of competence, organization, insurance, impartiality and independence required./

In addition, penalties are provided for owners who, in order to make the diagnosis required by law, would appeal to persons who do not respect the same conditions./

It is therefore essential, before making a diagnosis, to ensure the validity of the certificates of competence of the diagnostician and his attestation of professional liability insurance./

 How are the competencies of diagnosticians guaranteed?

The certification system guarantees the competence of the diagno- sors and their maintenance.
To be certified, the diagnostician must pass a theoretical examination and then a practical examination. The period of validity of this certification is 5 years.
In order to verify the maintenance of competencies, the certifying body organizes surveillance throughout the certification cycle. After 5 years, the diagnostician must renew his certification in order to continue practicing his profession.

How to detect the questionable practices of some providers?

It is possible to detect the possible deviations of certain providers, thanks to some basic principles:

  • Ensure that the diagnoser has a certificate number and that it is listed in the online directory or on the certification body websites.

  • Make sure the diagnoser visits your premises! Indeed, a diagnosis can not be established remotely!

  • Make sure that the visit of the premises is not too stealthy and that every room under diagnosis is actually visited!

  • Some diagnoses require the use of instruments or measuring instruments, such as the assessment of the risk of exposure to lead and the diagnosis of energy performance. In such cases, make sure that the diagnosiser uses them!

  • Make sure that the diver who visits the premises is actually the certified person! This can happen in an enterprise employing more than one employee.

  • Beware of the insistent recommendations of intermediaries and attractive tariffs, which can then reveal an insufficiency of quality or reliability of the delivered service.

If you notice any abnormal practice, or if you have any doubt about the competence with which the diagnosis is made, you can contact the organization that certified the diagnostician you used.

Legal basis

Code of construction and housing: art. L 271-4 to 6, Art. R 271-1 to 5.

Law No. 89-462 of 6 July 1989 amended to improve rental ratios: Art. 3-1

source http://www.developpement-durable.gouv.fr/-Diagnostics-techniques-immobiliers-.html