Garden shed, pergola, swimming pool, greenhouse: there are many solutions available to you to develop your garden.
But be careful, it is sometimes necessary to request planning permission from your town hall.
The public administration website takes stock of the different cases.
Let's first study the case of a permanent annex, such as a cabin, a garden shed, a fixed barbecue, an in-ground swimming pool or even a pergola.
The need to go through a preliminary process depends on the size of the installation.
Outside of the protected sector, “if the dimensions of your installation do not exceed 12 meters in height and 5 m² in surface area (floor area and footprint), you do not have to request planning permission,” indicates the 'administration.
Permanent annex
If one of these thresholds is exceeded, the owner must make a prior declaration of work or obtain a building permit.
A teleservice is offered by the Ministry of Urban Planning to find out which formality to request.
Please note that for production frames and greenhouses, the threshold is set at 1.80 meters in height.
In a protected area (near a historic monument, a listed site or a remarkable heritage site), you must always request planning permission from the town hall (prior declaration of works or building permit).
Also read Do you need planning permission to install a greenhouse in your garden?
Temporary annex
The rules are more flexible for temporary annexes, such as garden greenhouses, arbors or even above-ground swimming pools.
They depend on the length of time the installation is installed during the year.
In an unprotected sector, if it remains less than three months, no action is necessary.
In the protected sector, this period is reduced to just 15 days per year.
To keep your annex for longer, you must request
planning permission
from the town hall.
Depending on the size of the structure, this will involve a prior declaration of works or a building permit.
To find out, you must consult the ministry's teleservice.