Why choose Avenir Renovations?
Home extension in Geneva: what solutions for your project?
Considering a home extension in Geneva requires choosing the technique best suited to your plot and its built environment. The canton, dense and subject to strict urban planning rules, also pushes many owners towards storey addition when the ground footprint reaches its limit. In certain villa zones, the municipal zoning plan closely regulates the height, placement, and exterior appearance of the project, which is why it is important to consult an architect or technical office early on. Three solutions stand out clearly for enlarging your home, each responding to a different plot configuration.
Traditional or contemporary extension
In the residential neighborhoods around Carouge or the canton, brick and traditional masonry blend perfectly with the existing buildings and often meet local heritage requirements. For a more striking aesthetic, a brick home extension with contemporary lines, flat roof, and large windows deliberately breaks away from the original architecture. Some municipalities even impose a specific facade color or roof type, a point to check before submitting any application. The choice mainly depends on your municipality's zoning plan and the style of your villa.
Wood frame extension
Light and quick to assemble, a wood frame extension appeals to owners pressed for construction deadlines. Wood also boasts excellent thermal performance, a real asset against Swiss energy standards and the requirements of the SIA standard. Its lightness also limits the need for underpinning when existing foundations cannot support a heavy masonry addition, a significant advantage on sloped land. Generally, expect a substantial structure completed in a few weeks, compared to several months for traditional masonry.
Creation of a new living space
Adding a living space open to the garden transforms the daily life of an entire family. A side extension, a veranda or even the conversion of an existing garage each provide a different solution based on your actual needs and the configuration of your plot. Some owners thus transform an old garage into a bright office or a master suite, without altering the existing ground footprint. The natural light remains, without a doubt, the number one criterion for this type of project.
How does a home extension project proceed, from idea to construction?
A home extension project in Geneva follows a precise method, from the first pencil stroke to the project handover. Each step conditions the next, which explains why a structured support often makes the difference in meeting deadlines and the announced budget. Skipping a step, or treating it lightly, almost always delays the next one and increases the final bill.
What budget to plan for a home extension in Geneva?
No extension project has the same cost, as the parameters vary from one Geneva plot to another. The nature of the land, the added area, and the chosen technique weigh heavily in the final bill, as do access difficulties to the site or any additional connections. At Avenir Rénovations Geneva, we carry out this type of work throughout the canton and refine each budget during the free visit of our Works Manager. Before this appointment, our online simulator allows you to estimate the price of your home extension in just a few clicks. You will then receive a tailored quote, established according to the actual specifics of your site and sent within 8 days.
Average prices for home extension work in Geneva
| Types of work | Average price |
| Earthworks and foundations | 300 CHF/m² |
| Load-bearing wall masonry | 450 CHF/m² |
| Thermal insulation of walls | 180 CHF/m² |
| Exterior joinery (windows and sliding doors) | 250 CHF/m² |
| Roof framing and covering | 320 CHF/m² |
| Water, electricity, and heating connections | 150 CHF/m² |
Home extension in Geneva: entrust your project to Avenir Rénovations
Entrusting your home extension in Geneva to Avenir Rénovations guarantees you a single point of contact, from the first meeting to the handover of keys. At Avenir Rénovations Geneva, we coordinate all trades, manage administrative procedures, and adhere to the deadlines announced from the quote. This approach avoids unpleasant surprises and budget overruns that often accompany poorly coordinated projects.
Our renovation company in Geneva relies on several concrete guarantees to secure your project:
- a recognized quality standard applied to each project,
- a construction guarantee compliant with SIA 118 standards,
- support from A to Z for energy renovation aids, when your extension allows it.
These commitments reflect our desire to deliver a controlled project, from the first plan to the final finish.
Contact us today to arrange a free visit from your Project Manager and receive your free quote within 8 days.
Agency Avenir
Rénovations
for Home extension in Geneva
An expert to take charge of your renovation projects and guarantee deadlines, budgets and quality of all services.
