The facade: a prior works declaration
Changing the window, the paint, the materials or the joinery of a shopfront alters the building's external look. In most cases this comes under a prior works declaration (déclaration préalable), filed at the town hall before the works.
The first move is to ask the town hall whether the unit sits in a protected area or involves a protected building. The answer changes the type of file and the timescales.
The sign: a separate authorisation
The sign does not follow the same rules as the facade. Installing or replacing it needs a specific authorisation, addressed to the town hall, under the local advertising rules (RLP) where the commune has one.
Size, materials, lighting, projection over the pavement: each point can be regulated. A sign designed without checking the RLP risks a refusal, or even removal.
Protected areas and listed monuments
Near a listed monument or in a remarkable heritage site, the opinion of the architecte des bâtiments de France may be required. Materials, colours and proportions are then examined closely.
It is not an obstacle but a framework. Anticipated, it guides the drawing; discovered mid-works, it forces a redo.
The terrace, yet another file
If the project includes a terrace on the pavement, it comes under a public-space occupation permit, separate from the facade and the sign. It is requested from the commune, in Paris through the dedicated service.
Three objects, three authorisations: facade, sign, terrace. Handling them together up front avoids nasty surprises.
How we factor these steps in
We design and build the shopfront and the sign, and prepare the project in line with this framework: a drawing that holds the planning rules and the local RLP. Filing the requests stays with you or your architect, but we supply the technical parts of the file.
Checking the framework before drawing saves weeks. It is the first question we ask on a shopfront project.
