Declaration of the opening of the construction site

Verified 23 November 2023 - Legal and Administrative Information Directorate (Prime Minister)

You have just received the city planning authorization (building permit or development permit). Are you wondering whether to declare the opening of the construction site? We will explain how to do this.

The RFSO is a document signaling the beginning of the works to the town hall.

It must be sent at the start of the work.

There's no no legal definition the concept of commencement of work.

You have a building permit or a development permit. You must declare the opening of your construction site to the town hall.

FYI  

holders of a preliminary declaration of works (DP) or demolition permit have not to be declared the opening of the construction site.

The approach of DOC varies depending on whether you are in the province or in Paris.

General case

You must file your DOC in town 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

On the Internet

You can file your DOC via the Internet:

Support for your city planning authorization request

Form

You can fill out your RFSO using a form:

Declaration of the opening of the construction site

In Paris

You must file your DOC atBASU: titleContent by dematerialized means.

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

You must start the work within 3 years upon obtaining your building or development permit.

FYI  

your license is expired if you do not get started not work in the 3 years. If you do interrupt lasting more than 1 year after the three-year periodYour license is also out of date. However, you can request the extension of your license. You can extend it twice for 1 year.

Support for your city planning authorization request

Declaration of the opening of the construction site

Who can help me?

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