Have you purchased a piece of land where you plan to build your house? Are you considering expanding or making renovations to your residence? For these scenarios, you will need a building permit. Let's explore together what it entails and how to navigate the process.

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When is a Building Permit Necessary in Luxembourg?

A building permit is required for any construction or substantial modification to an existing building, including:

• Constructing new buildings
• Extending or altering existing buildings
• Changing the use of a space, such as converting a commercial area into a residential space
• Certain outdoor installations, such as a pool, veranda, or garden shed, if their areas exceed 20 square meters
• Partial or complete demolition of a building

However, minor interior renovations and projects costing less than €6,197 excluding VAT do not require a building permit.

Architects: Mandatory or Not?

In most cases, hiring an architect is obligatory. Architects ensure that the project adheres to local urban planning and construction regulations.

Additionally, architects can assist you in compiling your application, ensuring that all necessary documents are included and your request is complete. They can even be authorized to submit the building permit application on your behalf to the mayor.

However, there are instances where hiring an architect is not mandatory. In simple terms, if the work is confined to the interior of your home and does not involve load-bearing walls, it is permissible. This includes anything not visible from the exterior, such as roofs or facades.

Posting Requirements and Additional Steps

The building permit must be visibly displayed on the property throughout the construction period.

The approved plans must be kept at the construction site and made available to the municipal administration upon request.

Once the work is completed, you'll need to submit a completion of work declaration to the municipal administration. They will verify the construction's compliance with the building permit and urban planning regulations.

General Development Plan (PAG): What is it?

The General Development Plan is a document drafted by the city to outline construction and development rules. For instance, it includes a map showing the allocation of different zones within the municipality (residential, commercial, industrial, and their boundaries).

This plan covers what is allowed and prohibited in terms of urban planning. It specifies building heights, buildable land, green spaces, and even specific requirements such as building heights for a particular zone, and permitted or restricted colors for facades or roofs.

In essence, it's the book that sets the rules for urban planning.

If you have any doubts or questions, don't hesitate to visit your local municipal administration – they're there to guide you.

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