Do you need a city planning authorization to make thermal insulation from the outside (ITE)?

Verified 06 March 2024 - Directorate for Legal and Administrative Information (Prime Minister)

Yes, city planning authorization is required to achieve thermal insulation from the exterior (ITE) because you are changing the exterior appearance of the building.

To carry out an ITE, you must submit a prior declaration of works to the City Hall (or to the BASU: titleContent in Paris).

FYI  

You have theobligation to carry out an ITE when you undertake major renovation work such as refurbishing the walls of heated rooms overlooking the outside.

You can make your requests on the internet or by using a form, depending on whether you are in Paris or in another municipality.

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General case

You must file your file in the city hall:

  • By dematerialized according to the arrangements made by your municipality (inquire on the site of the town hall or on the spot)
  • By letter RAR: titleContent
  • In your own hand
Who shall I contact
Form

The form is different if your ITE is made on a detached house or on another type of construction.

Detached house

For an ITE on a detached house, you must use the following form:

Prior declaration for a detached house and/or its annexes - DPMI

Other construction

For an ITE on another type of construction, you must use the following form:

Prior notification (construction, works, installations and facilities not subject to a building permit)

In Paris

You must submit your file to the BASU: titleContent by dematerialized means only:

Office Accueil et Service à l'Usager (BASU) de Paris: one-stop-shop

Who can help me?

Find who can answer your questions in your region

  • For information on city planning regulations and administrative procedures

    Telephone administrative information - Allo Public Service

    For more information on this topic, you can contact Allô Service Public.

    Cost: free service

    The informants who answer you belong to the ministry in charge of housing and city planning.

    Attention: the service does not have access to users' personal files and cannot therefore provide information on their status.

    The service is available at the following times:

      • Lundi : de 08h30 à 16h15
      • Mardi : de 08h30 à 12h15
      • Mercredi : de 08h30 à 12h15
      • Jeudi : de 08h30 à 17h30
      • Vendredi : de 13h00 à 16h15

    Request a call

  • For information on your local city planning plan or file

    Town Hall

  • For information on the local city planning plan or your file in Paris

    Paris: Reception and service desk (BASU)

  • For advice on architecture, city planning and environment

    Architectural, city planning and Environmental Council (CAUE)

  • For advice on home renovation

    Specialist advisors on housing renovation works (France Rénov')

    Allows you to be accompanied for free in its renovation work by specialized advisors of France Rénov'

    By telephone

    0 808 800 700

    Open from Monday to Friday from 9am to 6pm. You must have your last tax notice.

    Free service + cost of a call