Why choose Avenir Rénovations?
Service presentation: roof terrace elevation
Do you want to exploit the potential of your roof without increasing the ground footprint? Roof terrace elevation is a modern and efficient solution to enlarge your living space while respecting environmental and urban constraints. It allows for the creation of new living spaces without sacrificing the garden or outdoor areas, while bringing a clean and contemporary aesthetic to your home. This type of project enhances the existing structure, improves thermal comfort, and increases the property value of your asset. Avenir Rénovations Suisse supports you in every phase: study, design, administrative procedures, execution, and site monitoring, to ensure a serene project, compliant with standards, and carried out under the best conditions.
What is a roof terrace elevation?
Roof terrace elevation allows you to enlarge your house without altering its ground footprint by adding an additional level. Suitable for urban areas, it offers additional habitable square meters and improves aesthetics, thermal comfort, and property value. Whether accessible or not, the roof terrace becomes an architectural asset while respecting local regulations and enhancing the potential of your plot.
Accessible vs non-accessible roof terrace
Depending on the intended use, you can choose between an accessible roof terrace, designed as a living or relaxation space (terrace, hanging garden, solarium), and a non-accessible roof terrace, reserved for technical use or solely for maintenance. This choice will depend on your needs, budget, and technical or regulatory constraints related to your elevation project.
- Accessible: usable area like terrace, garden, master suite, etc.
- Non-accessible: flat roof only for technical purposes, without regular access.
Key steps in the rooftop terrace extension project
An extension project requires methodical and rigorous planning — here are the main steps from start to completion.
Why choose Avenir Rénovations Suisse for this service
Entrusting your elevation project to an experienced professional ensures not only quality execution but also total peace of mind throughout the work. You benefit from enhanced security, rigorous management of technical constraints, and full compliance with current regulatory standards. This guarantees a durable and compliant result while optimizing your chances of success at every stage of the project.
From the first meeting, you are accompanied by a dedicated Project Manager, your single point of contact throughout the project. They ensure the coordination of craftsmen, rigorous monitoring of the site, and attention to the quality of finishes. This organization guarantees smooth management, controlled timelines, and a result that meets your expectations.
We handle the entire administrative file, whether it is a prior declaration of work or a building permit, in compliance with Swiss regulations. If necessary, we collaborate with architects and engineering firms to ensure the technical and regulatory compliance of your project from its design phase.
Our services include high-performance thermal insulation, careful waterproofing of flat roofs, and high-end finishes, all benefiting from a ten-year guarantee for your peace of mind. Furthermore, we assist you in accessing federal or cantonal aids for energy-related work to optimize your investment while respecting environmental standards and reducing your costs.
How much do rooftop terrace extension works cost?
To provide you with a clear estimate, we have prepared below an indicative table of average costs per m² depending on the type of extension. These costs vary according to the construction technique, the materials chosen, and the complexity of the project, thus offering better visibility on the expenses to be anticipated.
| Type of extension | Average price including tax (CHF/m²) | Indicative range (CHF/m²) |
| Unfinished rooftop terrace extension (waterproof and airtight) | approx. 1,600 CHF | 1,400 – 1,800 |
| Extension with finished rooftop terrace (accessible) | approx. 2,800 CHF | 2,500 – 3,500 |
| Extension with interior development (full floor) | approx. 3,200 CHF | 2,800 – 4,000 |
These amounts include supplies, labor, and complete finishes. The cost may vary depending on the area, materials, site accessibility, and location.
The advantages of a raised terrace roof in the Romandy region of Switzerland
This type of project not only offers space gains but also sustainable benefits in terms of energy, aesthetics, and finance.
Valuable space gain
Without encroaching on the garden, you add useful space: bedroom, office, master suite, or terrace. It is an ideal solution in dense urban areas.
Property valuation
A well-executed elevation can increase the value of your property by 15 to 30%. It optimizes the space, comfort, and aesthetics of the property.
Enhanced insulation and energy performance
This work allows for the integration of effective insulation and sustainable solutions. It also opens access to cantonal or federal aid.
Contemporary design
The terrace roof offers a modern and sleek architectural look. It thus becomes a true aesthetic signature that enhances the appearance of your home.
FAQ – Frequently Asked Questions
Here are the answers to the most common questions about terrace roof elevation in the Romandy region of Switzerland.
Is it possible not to completely destroy the existing roof?
Yes, sometimes a partial elevation is possible without complete demolition, depending on the condition of the framework and the prior technical study.
Do I have to apply for a building permit in Switzerland?
In most cases, yes. Some municipalities accept a prior declaration depending on the scale of the project. We guide you at every step.
What is the average total timeframe for this type of project?
Between 4 and 8 months, including the study, authorization, work, and final reception.
Can a terrace be added to the new floor?
Yes, if you choose an accessible version that complies with safety and urban usage standards.
What are the differences between extension and elevation?
The extension acts horizontally (ground footprint), while the elevation acts vertically without encroaching on the existing land.
Entrust your terrace roof elevation project to Avenir Rénovations Suisse
The elevation of a terrace roof is an effective solution to expand and modernize your home in Romandy. It provides long-term benefits in terms of comfort, property value, insulation, and design. This approach maximizes space without encroaching on the land, while offering stunning views and a better quality of life. With Avenir Rénovations Suisse, your project benefits from the expertise of a competent, rigorous team that is fully informed about local regulations. Thus, your elevation is carried out under the best conditions, with complete and personalized follow-up.
Contact us today for a comprehensive study and a personalized quote tailored to your cantonal situation.
