Pre-declaration of works (construction, works, facilities and facilities not subject to permits including or without demolitions, etc.)

The prior declaration is mandatory only if the work involves modifying the exterior appearance of the building:
modification or replacement of the window, change of carpentry or other materials, drilling of a new opening, new paint color for the facade, etc.

A prior declaration of work is compulsory, in particular in the following cases :

• new construction (garage, outbuilding ...) or work on an existing construction resulting in the creation of a floor area or footprint of between 5 m² and 20 m². For work on an existing construction, this threshold is increased to 40 m² if the construction is located in an urban area covered by a local urban plan (PLU) or a land use plan (POS),
• construction of a wall with a height above the ground greater than or equal to 2 m,
• construction of a swimming pool whose basin has an area less than or equal to 100 m² not covered or whose cover (fixed or mobile) has a height above the ground less than 1.80 m,
• work modifying the initial exterior appearance of a construction (for example, replacing a window or door with another model
• drilling of a new window, choice of a new paint color for the facade),
• renovation work if they take place in a space subject to special protection (for example, access to a historic monument),
• change of destination of a premises (for example, transformation of a commercial premises into a residential premises) without modifying the supporting structures or the facade of the building,
• realization of a land division in particular to detach one or more lots.

Work consisting in restoring the building to its initial state (renovation or cleaning work on the facade) does not require
no prior declaration, unless the business is located in a protected area such as the surroundings of a historic monument (less than 500m) or if an authorization has been decided by a deliberation of the municipal council.

There is a prior declaration process for each of the following reasons:

construction and work not subject to a building permit relating to a detached house and / or its annexes
construction, works, installations and developments not subject to a permit, including or not demolition
subdivisions and other land divisions not subject to planning permission

The prior declaration file for a modification of a commercial storefront must be submitted to the town hall of the municipality where the commercial establishment is located. The time limit for investigating the case is one month and, if no letter from the administration is received within this period, the decision not to oppose this work or arrangement is considered to be granted.

The use of an architect is not compulsory.