How do you turn an office or business into a home?
Verified 04 April 2023 - Legal and Administrative Information Directorate (Prime Minister)
You're looking at transforming an office or a business into housing. You're wondering about the steps to be taken. Do you need to contact the city planning and land registry services? If your premises are in co-ownership, do you have any procedures to do?
We are taking stock of the regulations.
Warning
If you intend to rent the future accommodation, you must respect the decency characteristics.
By transforming a room into housing, you change its destination.
It is recommended to check that the MORE: titleContent don't object. You can consult the PLU in town hall.
Depending on your project, you must submit a prior declaration of works or an application for a building permit.
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Change of destination
If your change of destination is not accompanied by a change in the load-bearing structure or facade of your construction, you must make a Advance Work Statement (AD).
You can complete the RFP on the Internet or by using a form.
On the Internet
You should check with your city council or its website to find out if it has an online service to complete your application online.
Municipalities with more than 3,500 inhabitants have a specific online service for the seizure and deposit of city planning authorizations.
If your municipality has not set up an online service, you can use an Internet-based support service that guides you through each step of building your file. You can complete and print the DP file using this assistance even if your municipality is not connected to it. From the beginning of the seizure, you will be informed if your municipality is connected.
Form
You must use the following form:
Change of destination or sub-destination with facade change
You must request a building permit.
You can do your work on the Internet or by using the building permit form.
On the Internet
You should check with your city council or its website to find out if it has an online service to complete your application online.
Municipalities with more than 3,500 inhabitants have a specific online service for the seizure and deposit of city planning authorizations.
If your municipality has not set it up, you can use an Internet-based support service that guides you through each step of compiling your file.
You can complete and print the DP file using this assistance even if your municipality is not connected to it. From the beginning of the seizure, you will be informed if your municipality is connected.
Form
You must use the following form:
Application for a building permit (other than for a detached house or its annexes)
Change of destination or sub-destination with modification of the carrier structure
The supporting structure of a building comprises all the elements (supporting walls, posts, beams and lintels) that allow it to support its framework and floors.
You must request a building permit.
You can do your work on the Internet or by using the building permit form.
On the Internet
You should check with your city council or its website to find out if it has an online service to complete your application online.
Municipalities with more than 3,500 inhabitants have a specific online service for the seizure and deposit of city planning authorizations.
If your municipality has not set it up, you can use an Internet-based support service that guides you through each step of compiling your file.
You can complete and print the DP file using this assistance even if your municipality is not connected to it. From the beginning of the seizure, you will be informed if your municipality is connected.
Form
You must use the following form:
Application for a building permit (other than for a detached house or its annexes)
The conversion of a room into a dwelling modifies the calculation of theproperty tax.
The territorial economic contribution is deleted when you transform a business premises into a dwelling.
You must declare the assignment change with the form next:
Model IL Declaration - Change in consistency or assignment of built and non-built properties
You must send it by mail RAR: titleContent or deposit it in the land registry office on which your premises depends, within 90 days of the realization of the change of destination.
The co-ownership rules defines the purpose of the building (dwelling, office, business...).
Your approach will be different depending on whether or not the transformation of your premises into housing respects this destination.
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Your project respects the destination of the building
You can to change the allocation of a premises without any special approach to the condominium.
Your project does not meet the building's destination
You must request permission to change the assignment of your premises to a general meeting.
The decision shall be taken byunanimity of all co-owners.
Who can help me?
Find who can answer your questions in your region
For a question on city planning rules
Town HallFor a question on city planning rules (in Paris)
Paris: Reception and service desk (BASU)For a tax issue
Land and cadastre tax center
- City planning code: Articles R*421-14 and R*421-16Work requiring a building permit
- City planning Code: Articles R*421-17Work requiring prior notification
- General Tax Code: Article 1406Declaration of change of premises
- Law No. 65-557 of 10 July 1965: article 26
- Decree No. 2002-120 of 30 January 2002 on the characteristics of decent housing
- Support for your city planning authorization request
Online service
- Prior notification (construction, works, installations and facilities not subject to a building permit)
Form
- Application for a building permit (other than for a detached house or its annexes)
Form
- Model IL Declaration - Change in consistency or assignment of built and non-built properties
Form
FAQ
- WorksService-Public.fr
- Advance Work Declaration (PNR)Service-Public.fr
- Building permitsService-Public.fr