Why choose Avenir Renovations?
Why expand your house in Luxembourg
Expanding a house is an ideal solution to enjoy superior comfort without changing neighborhoods. This choice appeals to many homeowners who wish to optimize their living space while retaining their familiar environment.
A living comfort tailored to your needs
Growing families, remote workers, or seniors seek a more functional and better-organized space. The expansion allows adding a bedroom, an office, or a master suite, while preserving the architectural coherence of the house.
A sustainable property value increase
By increasing the living area, your property immediately gains value. An expansion carried out according to the rules of the art by Avenir Rénovations Luxembourg becomes a true investment, profitable both at resale and in daily life.
An economical alternative to moving
The costs associated with moving or purchasing new real estate are often higher than those of an expansion. Moreover, you avoid complex procedures and maintain your comfort in an environment you love.
A complete customization
Every project is unique. The expansion offers the freedom to design a tailor-made space: lateral extension, storey addition, conservatory, or contemporary wooden expansion. Your house adapts to your lifestyle, not the other way around.
Steps of a home extension project in Luxembourg
Carrying out a home extension requires rigorous planning. Avenir Rénovations Luxembourg provides complete support at every stage to ensure the success of the project.
The different types of home extensions in Luxembourg
Depending on the layout of the land and the existing structure, several solutions are possible to expand your home. Avenir Rénovations Luxembourg helps you choose the most suitable option for your needs and budget.
This solution involves expanding the house on a single level, often onto the garden or a side courtyard. It is ideal for homes with sufficient land and allows for the creation of large, bright rooms that open to the outside.
By adding a floor, you almost double your living space without encroaching on your land. This type of extension requires a thorough structural study, perfectly mastered by the experts at Avenir Rénovations Luxembourg.
Loft conversion allows you to transform an unused space into bedrooms, an office, or a playroom. It is a quick and economical solution that does not change the footprint of your house while enhancing its existing volume.
The veranda, made of aluminum or wood, creates a bright and friendly space, ideal as a living room or winter garden. Thanks to effective insulation, it remains pleasant to live in all year round, both in summer and winter.
When the land does not allow for expansion on the surface, excavating the basement offers a clever alternative. Avenir Rénovations Luxembourg transforms this space into a cellar, gym, or home cinema that is perfectly insulated and ventilated.
How much do home extension works cost in Luxembourg?
The cost of a home extension in Luxembourg depends on many factors: type of extension, materials used, added surface area, and desired level of finish. Avenir Rénovations Luxembourg guarantees you a clear estimate and a personalized quote tailored to your project and budget.
Factors influencing the price
The complexity of the site, the condition of the existing building, and technical constraints directly impact the final cost. Wooden or metal frame extensions are often quicker to assemble, while masonry ones require more time and investment.
Services included in our prices
Our offers include technical study, design of plans, labor, site management, coordination of trades, as well as interior and exterior finishes. Price transparency is at the heart of our approach.
| Type of service | Price per m² (€) | Average total price (€) |
| Side extension in masonry | 2,376 to 3,240 € | 48,600 to 86,400 € |
| Complete storey addition | 3,024 to 4,104 € | 64,800 to 129,600 € |
| Attic fit-out | 1,620 to 2,700 € | 32,400 to 59,400 € |
| Aluminum or wood veranda | 1,296 to 2,376 € | 27,000 to 43,200 € |
| Wood frame extension | 2,160 to 3,024 € | 43,200 to 81,000 € |
| Excavation and basement fit-out | 2,700 to 4,320 € | 64,800 to 108,000 € |
These prices are given for informational purposes. The exact price will depend on the land, chosen materials, and created surface area. Avenir Rénovations Luxembourg will provide you with a detailed quote after an on-site study.
Possible materials for a home extension in Luxembourg
The choice of materials determines both the aesthetics, durability, and energy performance of your project. Avenir Rénovations Luxembourg advises you on harmonizing the new space with the style of your existing home.
Wood, for a natural and quick-to-assemble extension
Light, eco-friendly, and warm, wood is a highly sought-after material for extensions. It offers excellent thermal and acoustic insulation while reducing construction time due to quick and clean implementation.
Concrete block, for unbeatable strength
Robust and durable, concrete block remains a classic choice for constructions in Luxembourg. It allows for perfect integration into a traditional house and guarantees very good mechanical resistance to local weather conditions.
Steel and glass, for a contemporary style
The combination of metal and glass brings a modern and sleek design to your home. These materials are perfect for glazed extensions or bold architectures while ensuring good natural light.
Cellular concrete, for optimal energy performance
This lightweight and insulating material is perfectly suited for low-energy extension projects. Its ease of installation and excellent thermal regulation make it a sustainable and economical solution.
Brick, for timeless charm
Brick houses in Luxembourg have an authentic look. Using it for an extension helps maintain the visual unity of the building while benefiting from great resistance and natural insulation.
Regulations for a home extension in Luxembourg
Any extension or storey addition must comply with the legislation in force in the Grand Duchy. Before starting work, it is essential to adhere to local and national urban planning rules.
Building permit and administrative procedures
Any modification of the living area or volume of the house requires a building permit issued by the municipality. Avenir Rénovations Luxembourg assists you in preparing and submitting the complete file, including plans, technical descriptions, and photos.
Compliance with the General Development Plan (PAG)
The PAG sets the rules for land use and construction limits for each plot. Our partner architects ensure that the project complies with zoning, the maximum height allowed, and regulatory distances.
Distances to property boundaries
Depending on the municipality, a minimum distance must be maintained between the new construction and the neighboring plot boundary. On average, this ranges from 3 to 5 meters, but some urban areas impose stricter rules.
Energy performance and environmental standards
Luxembourg encourages energy-efficient constructions. Extensions must meet the standards of the current thermal regulations, with enhanced insulation and sustainable materials.
Work in co-ownership
If the extension concerns a semi-detached or terraced house, the agreement of co-owners or neighbors may be necessary. We help you secure these procedures to avoid any future disputes.
FAQ on home extension in Luxembourg
Is a building permit required for an extension?
Yes, in most cases, a building permit (construction authorization) is mandatory. Only small extensions or light annexes may, depending on their area, be subject to a simple declaration. It is therefore important to consult the municipality before any project.
What area can I add to my house?
The allowed area depends on the General Development Plan and the land occupancy coefficient of your plot. Our Avenir Rénovations experts check this data to optimize the living space while adhering to municipal regulations.
How long does a home extension take?
On average, a home extension of 30 to 50 m² requires between 3 and 6 months of work, depending on the complexity of the site. This timeframe includes design, administrative procedures, construction, and finishing.
Can we live in the house during the work?
Yes, in many cases, you can stay on-site during the work, especially for outdoor extensions. Our teams ensure to limit noise disturbances and secure the site for your comfort.
Does the extension improve energy performance?
Absolutely. The modern materials and high-performance insulation used by Avenir Rénovations Luxembourg significantly improve the thermal performance of the home and reduce your energy bills.
Does Avenir Rénovations offer complete support?
Yes. We manage the entire project: study, design, administrative procedures, construction, and finishing. You benefit from a single point of contact and personalized follow-up throughout the execution.
Trust Avenir Rénovations Luxembourg to extend your home
Extending your home in Luxembourg means improving your quality of life while enhancing your property value. With its expertise and network of qualified craftsmen, Avenir Rénovations Luxembourg designs custom, sustainable, and aesthetic extensions.
Our teams operate throughout Luxembourg: Luxembourg City, Esch-sur-Alzette, Differdange, Dudelange, Bettembourg, Ettelbruck, Diekirch, Mersch, and Wiltz. We do everything possible to make your extension a smooth, compliant, and harmonious project.
Contact Avenir Rénovations Luxembourg today to get your free quote and discover how to transform your home without changing it. Together, let's give a new dimension to your living space.
