What authorization should be given to build a garage?

Verified 27 January 2023 - Directorate for Legal and Administrative Information (Prime Minister)

Want to build a garage? You must obtain a city planning authorization before starting your work.

Depending on the situation of the land, the location and the surface of your project, you must file in the town hall a prior declaration of works or an application for a building permit. We're presenting the regulations.

You need to know if your land is located in one of the protected areas. It's the remarkable heritage sites, the surroundings of historical monuments, classified sites or pending classification, natural reserves, remarkable spaces and coastal environments to be preserved.

You can get this information from your city hall.

Who shall I contact
General case

Your construction is independent of the residential building

The choice of city planning authorization depends on the surface area of your building.

Creation of 20 m² or less

The construction of a garage of more than 5 m² is subject to Advance Work Statement (AD) when sound ground right of way and sadness floor area are less than or equal to 20 m².

Creation of more than 20 m²

The construction of a garage of more than 5 m² is subject to building permit when sound ground right of way or sadness floor area are more than 20 m².

Your building is adjacent to the dwelling

The choice of city planning authorization depends on the situation of your land and the surface of your building.

You must check whether your construction is in an urban area of a municipality covered by a MORE: titleContent or a Land Use Plan (SOP).

You can get that information from your city hall.

Who shall I contact
Your construction is located in an urban area of a PLU

The choice of city planning authorization depends on the surface area of your building.

Creation of 40 m² or less

The construction of a garage of more than 5 m² is subject to Advance Work Statement (AD) when sound ground right of way and sadness floor area are less than or equal to 40 m².

Creation of more than 40 m²

Your project is subject to building permit when sound ground right of way or sadness floor area are more than 40 m².

Other situations

The choice of city planning authorization depends on the surface area of your building.

Creation of 20 m² or less

The construction of a garage of more than 5 m² is subject to Advance Work Statement (AD) when sound ground right of way and sadness floor area are less than or equal to 20 m².

Creation of more than 20 m²

Your project is subject to building permit when sound ground right of way or sadness floor area are more than 20 m².

Sectors protected

Your construction is independent of the residential building

The choice of city planning authorization depends on the surface area of your building.

Creation of 20 m² or less

Your project is subject to Advance Work Statement (AD) when sound ground right of way and sadness floor area are less than or equal to 20 m².

Creation of more than 20 m²

Your project is subject to a building permit when its right of way on the ground or its floor area is more than 20 m².

Your building is adjacent to the dwelling

The choice of city planning authorization depends on the situation of your land and the surface of your building.

You must check whether your construction is in an urban area of a municipality covered by a MORE: titleContent or a Land Use Plan (SOP).

You can get that information from your city hall.

Who shall I contact
Your construction is located in an urban area of a PLU

The choice of city planning authorization depends on the surface area of your building.

Creation of 40 m² or less

The construction of a garage is subject to Advance Work Statement (AD) when sound ground right of way and sadness floor area are less than or equal to 40 m².

Creation of more than 40 m²

Your project is subject to building permit when sound ground right of way or sadness floor area are more than 40 m².

Other situations

The choice of city planning authorization depends on the surface area of your building.

Creation of 20 m² or less

The construction of a garage is subject to Advance Work Statement (AD) when sound ground right of way and sadness floor area are less than or equal to 40 m².

Creation of more than 20 m²

Your project is subject to building permit when sound ground right of way or sadness floor area are more than 20 m².

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