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Sign rules, commune by commune
The first question is not price, it is “am I allowed?”. The authorisation is issued by the mayor, and every commune applies its own building regulation — a format allowed in one commune is refused in the next. Here is what the regulations we have read say, word for word.
What applies everywhere in Luxembourg
A sign fixed to a facade falls under the building authorisation: it is the commune’s mayor who issues it, not a central administration.
le chef d’entreprise doit demander une autorisation de bâtir au bourgmestre de sa commune.
guichet.public.lu — Installation d’une affiche/enseigne en façade · 2019-11-29
On a listed building the commune’s authorisation is not enough: the ministry responsible for cultural affairs must also sign off, which lengthens the timeline.
si son immeuble est un bâtiment classé, il doit également demander une autorisation du ministère ayant dans ses attributions les affaires culturelles
guichet.public.lu — Installation d’une affiche/enseigne en façade · 2019-11-29
The application is not only about the planned sign: existing signs and advertising devices must also be listed, with a cadastral extract, a scale drawing and recent photos of the facade.
le relevé des enseignes de l’entreprise et des dispositifs publicitaires déjà fixés
guichet.public.lu — Installation d’une affiche/enseigne en façade · 2019-11-29
Communes whose regulation we have read
8 rules quoted · RBVS de la commune de Leudelange — version coordonnée votée par le Conseil communal en septembre 2021
Sanem8 rules quoted · Règlement sur les Bâtisses, les Voies publiques et les Sites de la commune de Sanem (publié sur suessem.lu, 05/2022)
Helperknapp3 rules quoted · RBVS de la commune de Helperknapp — version coordonnée (publiée sur helperknapp.lu, 08/2025)
Your commune is not in the list
Its regulation exists and it differs: we have not read it yet, and we would rather tell you than give you an answer we have not verified. Ask the commune administration for the regulation in force — and name the commune in your quote request: we check this before pricing.
The authorisation is issued by the mayor. These quotations help you prepare the application, they do not replace it: the commune decides, and it may grant derogations this page does not know about.