Declaration of the opening of the construction site
Verified 23 November 2023 - Directorate for Legal and Administrative Information (Prime Minister)
You have just received the city planning authorization (building permit or development permit) and you are wondering if it is necessary to declare the opening of the 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:
Form
You can fill out your RFSO using a form:
In Paris
You must file your DOC atBasu: titleContent by dematerialized means.
Office Accueil et Service à l'User (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 If you do interrupt lasting more than 1 year after the three-year periodYour license is also out of date.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.
Who can help me?
Find who can answer your questions in your region
For more information
Telephone administrative information - Allo Public Service
For more information on this topic, you can contact Allô Service Public.
Attention: the service does not have access to users' personal files and cannot therefore provide information on their status.
- Lundi : de 08h30 à 17h30
- Mardi : de 08h30 à 12h15
- Mercredi : de 08h30 à 12h15
- Jeudi : de 08h30 à 17h30
- Vendredi : de 13h00 à 16h15
- Service free
The informants who answer you belong to the ministry in charge of housing and city planning.
- Town Hall
- Paris: Reception and service desk (Basu)
Lodging of the opening declaration
Deadlines for starting work
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