Why choose Avenir Renovations?
Why raise a tiled roof?
The elevation of a tiled roof offers numerous advantages, both functional, aesthetic, and heritage-related:
- Creation of a new floor or a complete living space
- Significant enhancement of the property value
- Preservation of the traditional aesthetic of the roof
- Improvement of thermal performance with reinforced insulation
- Solution suitable for constrained land, especially in urban areas
Unlike attic fit-out, elevation allows for sufficient height to create comfortable spaces that meet habitability standards.
The steps of a tile roof extension project
A project for a storey addition requires a rigorous methodology. At Avenir Rénovations Belgium, we ensure comprehensive management of the site, with a single point of contact by your side.
What work is necessary for a tile roof storey addition?
The storey addition of a tile roof involves several trades. Here are the main works to be planned:
- Removal of the existing tile covering
- Reinforcement of the load-bearing structure
- Construction of the walls of the additional floor
- Installation of the new framework
- Insulation of walls and roof
- Installation of joinery (windows, Velux, skylights)
- Electrical installation, plumbing, heating
- Creation of interior partitions and coverings
- Reinstallation of the tile covering (reused or new tiles)
- Waterproofing treatment and technical connections
Budget to expect for a tile roof extension
The price of a storey addition depends on many factors: area to be created, materials used, condition of the existing roof, type of framework, complexity of the site. Here is an indicative estimate of average prices in Belgium:
| Included services | Price range |
| Storey addition with reuse of tiles | €1,800 to €2,500 / m² |
| Storey addition with new tiles and complete fit-out | €2,500 to €3,800 / m² |
The total budget can vary from €60,000 to €120,000 for a floor of 30 to 40 m², depending on the level of finish chosen. A personalized quote will be provided after an on-site study.
What administrative procedures are required for a tiled roof elevation in Belgium?
Urban planning permit
Required in most cases, the urban planning permit is issued by the municipality. The file includes:
- Before/after plans
- Stability report
- Project description
- Compliance with local urban planning standards (dimensions, aesthetics, adjacency...)
Architect
The involvement of an architect is essential. They design the plans and ensure technical and regulatory oversight of the project.
Declaration to the cadastre
Once the work is completed, the new living area must be declared to the cadastre, which may lead to an update of your property tax.
Why choose Avenir Rénovations Belgium?
Choosing Avenir Rénovations means opting for safety, quality, and peace of mind. We ensure:
- A comprehensive management of the project
- A dedicated Project Manager as your sole contact
- Qualified teams for all trades
- Strong guarantees, including a ten-year guarantee
- A perfect understanding of Belgian standards and administrative procedures
We operate throughout Belgium for your roof elevation projects, whether you are in Brussels, Liège, Namur, Mons, or Antwerp.
Request your quote for a tiled roof elevation
Are you considering a home extension upwards? Contact Avenir Rénovations Belgium, your expert partner in elevation.
We offer you a free, quick, and personalized quote. A specialist will visit your home to assess the feasibility of your project, advise you, and provide a detailed estimate of the work.
Contact us now to transform your tiled roof into a true living space.
FAQ – Roof Storey Addition with Tiles in Belgium
Is it possible to reuse existing tiles during the storey addition?
Yes, if the tiles are in good condition, they can be recovered and reinstalled after the storey addition. This helps preserve the original aesthetic and limit costs. A technical check is carried out in advance.
Does the framework need to be modified to raise a tiled roof?
In most cases, the framework is completely replaced to adapt to the new height and ensure stability. A new framework also allows for better insulation and modern openings.
How long do roof storey addition works take?
On average, it takes between 4 and 6 months, including the technical study, obtaining the permit, and carrying out the work. This timeframe can vary depending on the complexity of the site and the weather.
Can a tiled roof be raised in a protected area or classified site?
Yes, but the project must comply with strict architectural rules and require specific authorization. The architect and our team will handle the adaptation of the project and the procedures.
What is the average cost of a storey addition with a tiled roof in Belgium?
Prices range from €1,800 to €3,800 per square meter depending on the type of work, materials, surface area, and finishes. A tailored quote is essential for an accurate estimate.




