What are the rules of urban planning to follow when building a garage?
Verified 25 September 2026 - Public Service / (Prime Minister)
You want to build a garage. Depending on your project (its location, surface, exterior appearance), you must file a building permit or a preliminary declaration, but you can be exempted from it. In some cases, you must also comply with rules regarding neighborhood, condominium or subdivision. We present you the steps of the process. They vary if your garage is communicating, i.e. with a access or a connecting door between the garage and an existing building, or if it is independent.
Communicating
Step-by-step approach
You should consult all of the following documents in which special rules regarding materials, color, appearance and distances may be observed:
- Local urban planning plan (MORE: titleContent) of your municipality. You can consult it with the urban planning department of your town hall. You can also ask the town hall for a urban planning which specifies whether the proposed project is feasible.
- Specifications or settlement of the subdivision if your land is in a subdivision. It is appended to the deed of purchase of your land. You can also get it from the president of your owner's union (ASP).
- Regulation of co-ownership if your property is located in a condominium. It is attached to the deed of purchase of your property. You can also obtain it from your syndic of co-ownership or the President of the union council.
If those documents do not lay down specific rules on theimplantation, you must place your project either on the edge of your property or at least 3 meters from it.
In any case, your project should not not cause to abnormal neighborhood disorder (for example, loss of sunlight, continuous noise from equipment) or create a view without respecting the minimum distance.
The urban planning authorization to be requested varies according to the surface of your project and if you are in an urban area of a municipality covered by a MORE: titleContent or in another area. You can obtain this information by contacting the urban planning department of your town hall.
In an urban area of a local urban planning plan | Outside an urban area of a local urban planning plan | ||
|---|---|---|---|
Ground footprint created | Urban planning permission | Ground footprint created | Urban planning permission |
≤ 40 m² | Prior declaration | ≤ 20 m² | Prior declaration |
> 40 m² | Building permits | > 20 m² | Building permits |
Warning
The legal persons must submit their application using a architect. This is also the case for some projects subject to building permits (PC) according to the total building surface after works.
Répondez aux questions successives et les réponses s’afficheront automatiquement
In urban areas of a PLU
The urban planning authorization to be requested depends on theright-of-way of your project:
Project up to 40 m²
Your project requires a prior declaration (DPS).
Depending on your municipality, the way to submit your file to the town hall is different:
- By dematerialized means (on the internet) according to the arrangements made by the municipality (consult the website of the town hall or inquire on the spot)
- By letter RAR: titleContent or by hand against a receipt signed by the town hall (form).
On the internet
You can complete and submit your application on the Internet:
Form
You can complete and submit your application using a form:
Prior declaration constructions and works not subject to building permits
Project larger than 40 m²
Your project requires a building permit (PC).
Depending on your municipality, the way to submit your file to the town hall is different:
- By dematerialized means (on the internet) according to the arrangements made by the municipality (consult the website of the town hall or inquire on the spot)
- By letter RAR: titleContent or by hand against a receipt signed by the town hall (form).
On the internet
You can complete and submit your application on the Internet:
Form
The form is different if your project involves a detached house or another type of building:
You can complete and submit your application using a form:
Application for a building permit for a detached house and/or its annexes (PCMI)
You can complete and submit your application using a form:
Application for a building permit (other than for a detached house or its annexes)
Outside an urban area of one PLU
The urban planning authorization to be requested depends on theright-of-way of your project:
Project up to 20 m²
Your project requires a prior declaration (DPS). A garage attached but not communicating with the building changes the exterior appearance: it also requires a DP.
Depending on your municipality, the way to submit your file to the town hall is different:
- By dematerialized means (on the internet) according to the arrangements made by the municipality (consult the website of the town hall or inquire on the spot)
- By letter RAR: titleContent or by hand against a receipt signed by the town hall (form).
On the internet
You can complete and submit your application on the Internet:
Form
You can complete and submit your application using a form:
Prior declaration constructions and works not subject to building permits
Project larger than 20 m²
Your project requires a building permit (PC).
Depending on your municipality, the way to submit your file to the town hall is different:
- By dematerialized means (on the internet) according to the arrangements made by the municipality (consult the website of the town hall or inquire on the spot)
- By letter RAR: titleContent or by hand against a receipt signed by the town hall (form).
On the internet
You can complete and submit your application on the Internet:
Form
The form is different if your project involves a detached house or another type of building:
You can complete and submit your application using a form:
Application for a building permit for a detached house and/or its annexes (PCMI)
You can complete and submit your application using a form:
Application for a building permit (other than for a detached house or its annexes)
You must also apply for the following permission if your project is located in a rental, condominium, subdivision:
Répondez aux questions successives et les réponses s’afficheront automatiquement
In a rental
You must request written permission by LRAR: titleContent to your owner. Otherwise, it may require the restoration of the premises, at your expense, upon your final departure. It can also keep the transformations without compensation.
In a condominium
If your project impacts the common areas (roof, facade...), you must request permission to carry out your project at the general meeting of co-owners. For this, your request should be addressed to trustee by LRAR: titleContent before the notice of meeting is sent to the general meeting. You must attach a document to your application that specifies the location and consistency of the works. This resolution shall be voted on at absolute majority.
In a subdivision
If the articles of your subdivision As provided for, you must request the authorization of the general meeting of the members of the owners' union association (ASP). In this case, the procedure (form of the application, majority vote...) is specified in the statutes.
As from the filing of your file, the town hall has 1 month to inform you if it is incomplete. If this is the case, you have 3 months to complete it, otherwise your application is rejected.
When your file is complete, the response time of the city hall is different depending on the authorization of urban planning and the location of your project:
Urban planning permission | General scenario | In protected area |
|---|---|---|
Prior declaration (DPS) | 1 month | 2 months |
Building permit (PC) for a detached house or its annexes | 2 months | 3 months |
PC on a project other than a single-family home | 3 months | 4 months |
Warning
From the filing of your file, the town hall has 1 month for you notify a longer response time. This is the case, for example, if it is necessary to consult the RCAP: titleContent.
The decision is addressed to you by LRAR: titleContent or by LRE: titleContent or an equivalent electronic process. There are several possible cases:
- Authorization or lack of response
- Authorization with requirements
- Refusal
- Stay of proceedings.
In the absence of a response within the deadline, your authorization is granted except in exceptional cases (this is the case, for example, for a project subject to an authorization under classified sites or nature reserves, or relating to a building registered under historic monuments).
Warning
The town hall can withdraw its authorization within 3 months from its issue if it is illegal.
You must display your authorization on your land or the facade of the building as soon as notification and throughout the works period. You must use a rectangular panel with dimensions greater than 80 cm, readable from the public road.
Your display shows the following information:
- Name, company name or company name of the beneficiary
- Date and number of authorization
- Nature of the project, land area
- Address of the town hall where the file can be consulted
- Name of the architect, author of the architectural project
- Floor area and the height of the structure(s), expressed in meters in relation to the natural ground
- Surface of the building(s) to be demolished if the project involves demolition.
He must also inform the public of the possibilities of appeal by mentioning the following information:
« Right of appeal:
The time limit for litigation is two months from the first day of a continuous period of two months of display on the ground of this panel (Article R. 600-2 of the urban planning Code).
Any administrative appeal or any contentious appeal must, on pain of inadmissibility, be notified to the author of the decision and to the beneficiary of the permit or of the decision taken on the prior declaration. This notification must be sent by registered letter with acknowledgement of receipt within fifteen clear days from the filing of the appeal (Article R. 600-1 of the urban planning Code). »
Please note
If you do not post your authorization, the time limit for third party is 6 months from thecompletion of works.
If you have requested permission from your landlord, condominium or subdivision, you must obtain their consent before starting your works.
If you own a PC, you must send a DOC to the town hall to start your works.
Depending on your municipality, the way to submit your file to the town hall is different:
- By dematerialized means (on the internet) according to the arrangements made by the municipality (consult the website of the town hall or inquire on the spot)
- By letter RAR: titleContent or by hand (form).
Répondez aux questions successives et les réponses s’afficheront automatiquement
On the internet
You can complete and submit your application on the Internet:
Form
You can complete and submit your return using a form:
As soon as the authorization of the town hall (and when they are necessary, those of the owner, the condominium or the subdivision) are acquired, you can start your works.
Once started, your works should not be interrupted for more than 1 year in a row, otherwise your urban planning authorization is no longer valid and you must reapply. This is also the case if you do not start works within 3 years of the issuance of your authorization.
However, your authorization can be extended 2 times for 1 year under the following 2 conditions:
- Urban planning rules and administrative easements unchanged between your 2 requests
- Sending your extension request at least 2 months before the end of the 3-year validity period.
When your project is completed, you have to send a letter to the town hall Declaration of Completion and Compliance of works (DAACT).
Depending on your municipality, the way to submit your file to the town hall is different:
- By dematerialized means (on the internet) according to the arrangements made by the municipality (consult the website of the town hall or inquire on the spot)
- By letter RAR: titleContent or by hand (form).
Répondez aux questions successives et les réponses s’afficheront automatiquement
On the internet
You can complete and submit your application on the Internet:
Form
You can complete and submit your return using a form:
If you carry out your project without authorization or if it does not comply with the authorization obtained, you risk the following cumulative penalties:
- Penal fine between €1,200 and €300,000 maximum (€1 500 000 maximum for legal persons)
- Administrative fine from €30,000 maximum
- Interruption of works
- Obligation to comply or demolish your project with a penalty payment of €500 maximum per day late
- Automatic compliance or demolition at your expense
- 6 months imprisonment in case of recidivism.
You have to pay a development tax (AT)and, in the event of an impact on the subsoil, a preventive archeology tax (PAF).
You can do a simulation of the amount:
Estimate the amount of urban planning fees (development fee and preventive archeology fee)
You must report the elements necessary to calculate the VAT, within 90 days after thecompletion of your works for tax purposes, from your secure area on the tax website in the « Manage my real estate » section.
You can also report them using a form to send to the property tax center on which you depend:
Form No. 6840-SD - Declaration of works for urban planning Fees
Your project can affect your property taxes. For more information, you can contact your departmental property tax center.
Independent
Step-by-step approach
You should consult all of the following documents in which special rules regarding materials, color, appearance and distances may be observed:
- Local urban planning plan (MORE: titleContent) of your municipality. You can consult it with the urban planning department of your town hall. You can also ask the town hall for a urban planning which specifies whether the proposed project is feasible.
- Specifications or settlement of the subdivision if your land is in a subdivision. It is appended to the deed of purchase of your land. You can also obtain it from the president of your owner's union (ASP).
- Regulation of co-ownership if your property is located in a condominium. It is attached to the deed of purchase of your property. You can also obtain it from your syndic of co-ownership or the President of the union council.
If those documents do not lay down specific rules on theimplantation, you must place your project either on the edge of your property or at least 3 meters from it.
In any case, your project should not not cause to abnormal neighborhood disorder (for example, loss of sunlight, continuous noise from equipment) or create a view without respecting the minimum distance.
The urban planning authorization to apply for or the exemption from authorization varies according to the surface of your project and if you are in a protected area or in another sector. You can obtain this information by contacting the urban planning department of your town hall.
General scenario | In protected area | ||
|---|---|---|---|
Ground footprint created | Urban planning permission | Ground footprint created | Urban planning permission |
≤ 5 m² | None | ≤ 5 m² | Prior declaration |
> 5 m² and ≤ 20 m² | Prior declaration | > 5 m² and ≤ 20 m² | Prior declaration |
> 20 m² | Building permits | > 20 m² | Building permits |
Warning
The legal persons must submit their application using a architect. This is also the case for some projects subject to building permits (PC) according to the total building surface after works.
Répondez aux questions successives et les réponses s’afficheront automatiquement
General scenario
The urban planning authorization to be requested depends on theright-of-way of your project:
Project of 5 m² or less
Your project is exempt from urban planning formalities. However, it requires a prior declaration (DPS) if it is attached to the existing building, because you change the appearance of the building.
Depending on your municipality, the way to submit your file to the town hall is different:
- By dematerialized means (on the internet) according to the arrangements made by the municipality (consult the website of the town hall or inquire on the spot)
- By letter RAR: titleContent or by hand against a receipt signed by the town hall (form).
On the internet
You can complete and submit your application on the Internet:
Form
You can complete and submit your application using a form:
Prior declaration constructions and works not subject to building permits
Project larger than 5 m² up to 20 m²
Your project requires a prior declaration (DPS).
Depending on your municipality, the way to submit your file to the town hall is different:
- By dematerialized means (on the internet) according to the arrangements made by the municipality (consult the website of the town hall or inquire on the spot)
- By letter RAR: titleContent or by hand against a receipt signed by the town hall (form).
On the internet
You can complete and submit your application on the Internet:
Form
You can complete and submit your application using a form:
Prior declaration constructions and works not subject to building permits
Project larger than 20 m²
Your project requires a building permit (PC).
Depending on your municipality, the way to submit your file to the town hall is different:
- By dematerialized means (on the internet) according to the arrangements made by the municipality (consult the website of the town hall or inquire on the spot)
- By letter RAR: titleContent or by hand against a receipt signed by the town hall (form).
On the internet
You can complete and submit your application on the Internet:
Form
The form is different if your project involves a detached house or another type of building:
You can complete and submit your application using a form:
Application for a building permit for a detached house and/or its annexes (PCMI)
You can complete and submit your application using a form:
Application for a building permit (other than for a detached house or its annexes)
Protected area
The urban planning authorization to be requested depends on theright-of-way of your project:
Project up to 20 m²
Your project requires a prior declaration (DPS).
Depending on your municipality, the way to submit your file to the town hall is different:
- By dematerialized means (on the internet) according to the arrangements made by the municipality (consult the website of the town hall or inquire on the spot)
- By letter RAR: titleContent or by hand against a receipt signed by the town hall (form).
On the internet
You can complete and submit your application on the Internet:
Form
You can complete and submit your application using a form:
Prior declaration constructions and works not subject to building permits
Project larger than 20 m²
Your project requires a building permit (PC).
Depending on your municipality, the way to submit your file to the town hall is different:
- By dematerialized means (on the internet) according to the arrangements made by the municipality (consult the website of the town hall or inquire on the spot)
- By letter RAR: titleContent or by hand against a receipt signed by the town hall (form).
On the internet
You can complete and submit your application on the Internet:
Form
The form is different if your project involves a detached house or another type of building:
You can complete and submit your application using a form:
Application for a building permit for a detached house and/or its annexes (PCMI)
You can complete and submit your application using a form:
Application for a building permit (other than for a detached house or its annexes)
You must also apply for the following permission if your project is located in a rental, condominium, subdivision:
Répondez aux questions successives et les réponses s’afficheront automatiquement
In a rental
You must request written permission by LRAR: titleContent to your owner. Otherwise, it may require the restoration of the premises, at your expense, upon your final departure. It can also keep the transformations without compensation.
In a condominium
If your project impacts the common areas (roof, facade...), you must request permission to carry out your project at the general meeting of co-owners. For this, your request should be addressed to trustee by LRAR: titleContent before the notice of meeting is sent to the general meeting. You must attach a document to your application that specifies the location and consistency of the works. This resolution shall be voted on at absolute majority.
In a subdivision
If the articles of your subdivision As provided for, you must request the authorization of the general meeting of the members of the owners' union association (ASP). In this case, the procedure (form of the application, majority vote...) is specified in the statutes.
As from the filing of your file, the town hall has 1 month to inform you if it is incomplete. If this is the case, you have 3 months to complete it, otherwise your application is rejected.
When your file is complete, the response time of the city hall is different depending on the authorization of urban planning and the location of your project:
Urban planning permission | General scenario | In protected area |
|---|---|---|
Prior declaration (DPS) | 1 month | 2 months |
Building permit (PC) for a detached house or its annexes | 2 months | 3 months |
PC on a project other than a single-family home | 3 months | 4 months |
Warning
From the filing of your file, the town hall has 1 month for you notify a longer response time. This is the case, for example, if it is necessary to consult the RCAP: titleContent.
The decision is addressed to you by LRAR: titleContent or by LRE: titleContent or an equivalent electronic process. There are several possible cases:
- Authorization or lack of response
- Authorization with requirements
- Refusal
- Stay of proceedings.
In the absence of a response within the deadline, your authorization is granted except in exceptional cases (this is the case, for example, for a project subject to an authorization under classified sites or nature reserves, or relating to a building registered under historic monuments).
Warning
The town hall can withdraw its authorization within 3 months from its issue if it is illegal.
You must display your authorization on your land or the facade of the building as soon as notification and throughout the works period. You must use a rectangular panel with dimensions greater than 80 cm, readable from the public road.
Your display shows the following information:
- Name, company name or company name of the beneficiary
- Date and number of authorization
- Nature of the project, land area
- Address of the town hall where the file can be consulted
- Name of the architect, author of the architectural project
- Floor area and the height of the structure(s), expressed in meters in relation to the natural ground
- Surface of the building(s) to be demolished if the project involves demolition.
He must also inform the public of the possibilities of appeal by mentioning the following information:
« Right of appeal:
The time limit for litigation is two months from the first day of a continuous period of two months of display on the ground of this panel (Article R. 600-2 of the urban planning Code).
Any administrative appeal or any contentious appeal must, on pain of inadmissibility, be notified to the author of the decision and to the beneficiary of the permit or of the decision taken on the prior declaration. This notification must be sent by registered letter with acknowledgement of receipt within fifteen clear days from the filing of the appeal (Article R. 600-1 of the urban planning Code). »
Please note
If you do not post your authorization, the time limit for third party is 6 months from thecompletion of works.
If you have requested permission from your landlord, condominium or subdivision, you must obtain their consent before starting your works.
If you own a PC, you must send a DOC to the town hall to start your works.
Depending on your municipality, the way to submit your file to the town hall is different:
- By dematerialized means (on the internet) according to the arrangements made by the municipality (consult the website of the town hall or inquire on the spot)
- By letter RAR: titleContent or by hand (form).
Répondez aux questions successives et les réponses s’afficheront automatiquement
On the internet
You can complete and submit your application on the Internet:
Form
You can complete and submit your return using a form:
As soon as the authorization of the town hall (and when they are necessary, those of the owner, the condominium or the subdivision) are acquired, you can start your works.
Once started, your works should not be interrupted for more than 1 year in a row, otherwise your urban planning authorization is no longer valid and you must reapply. This is also the case if you do not start works within 3 years of the issuance of your authorization.
However, your authorization can be extended 2 times for 1 year under the following 2 conditions:
- Urban planning rules and administrative easements unchanged between your 2 requests
- Sending your extension request at least 2 months before the end of the 3-year validity period.
When your project is completed, you have to send a letter to the town hall Declaration of Completion and Compliance of works (DAACT).
Depending on your municipality, the way to submit your file to the town hall is different:
- By dematerialized means (on the internet) according to the arrangements made by the municipality (consult the website of the town hall or inquire on the spot)
- By letter RAR: titleContent or by hand (form).
Répondez aux questions successives et les réponses s’afficheront automatiquement
On the internet
You can complete and submit your application on the Internet:
Form
You can complete and submit your return using a form:
If you carry out your project without authorization or if it does not comply with the authorization obtained, you risk the following cumulative penalties:
- Penal fine between €1,200 and €300,000 maximum (€1 500 000 maximum for legal persons)
- Administrative fine from €30,000 maximum
- Interruption of works
- Obligation to comply or demolish your project with a penalty payment of €500 maximum per day late
- Automatic compliance or demolition at your expense
- 6 months imprisonment in case of recidivism.
If your project requires an urban planning authorization, you must pay a development tax (AT)and, in the event of an impact on the subsoil, a preventive archeology tax (PAF).
You can do a simulation of the amount:
Estimate the amount of urban planning fees (development fee and preventive archeology fee)
You must report the elements necessary to calculate the VAT, within 90 days after thecompletion of your works for tax purposes, from your secure area on the tax website in the « Manage my real estate » section.
You can also report them using a form to send to the property tax center on which you depend:
Form No. 6840-SD - Declaration of works for urban planning Fees
Your project can affect your property taxes. For more information, you can contact your departmental property tax center.
Assistance with your urban planning permission application
Who can help me?
Find who can answer your questions in your region
For information on urban planning regulation and administrative procedures
For more information on this subject, you can contact Allô Service Public.
Please note: the service does not have access to users' personal files and cannot therefore provide information on their progress.
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The informants who answer you belong to the ministry in charge of housing and urban planning.
For information about the local urban planning plan or your file
Town hallFor information on property taxes, development tax or preventive archeology tax
Departmental Center for Property Taxes (CDIF)
Articles 7 and 9: Statutes of an ASL and deliberations
Request for authorization from a tenant to its owner
By-law of co-ownership and conditions of enjoyment of common and private parts
Majority vote in general meeting for authorization given to a co-owner
Development tax
Preventive Archeology Tax
Creating Views
Local urban planning plan (PLUS)
Development tax and preventive archeology fee
Projects subject to urban planning authorization
Withdrawal of an urban planning authorization
Specifications and settlement of a subdivision
DAACT and works control
Penalties for infringements
Rules of distance from neighboring terrain
New buildings subject to building permits
New constructions subject to prior declaration
Works on existing buildings subject to building permits
Works on existing structures subject to prior declaration
Deadline for responding to an urban planning authorization application
Silence kept equals authorization and exceptions
Viewing an urban planning Permission
Declaration of the opening of the construction site
Period of validity of an urban planning authorization
Extension of the period of validity of an urban planning authorization
Use of an architect
Remedies of third parties
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