Any construction, transformation or demolition of a building requires prior authorisation from the mayor of the commune.
The certificate issued by the mayor, stating that the planned construction has been duly authorised, must be posted in the vicinity of the construction site by the project’s contracting authority.
Each person with plans for the construction, transformation or demolition of a building must apply for a building permit.
A building permit will only be granted if the works are compliant with:
The building permit certificate must be requested via an application form, which can be obtained from the communal authorities in the commune where the existing or future building is or is to be located.
In most cases, the application must be submitted to the mayor in writing.
For Luxembourg City, the building permit application form is available online. The application can either:
Works may not be started until the building permit is received.
The commune can request that several documents be attached to the application, such as:
The building permit will lapse if, within 1 year, no significant progress has been made in connection with the commencement of the authorised works.
This time limit may be extended by an additional year following the submission of a substantiated request by the beneficiary.