The canton of Geneva is a city-canton: a small, highly urbanised territory organised around the lake and the city of Geneva. Work here is therefore mostly renovation and maintenance in apartment buildings, suburban villas and a few country houses. This page presents the Geneva context, the authorities to consult, the most common projects and how to request a quote.
Buildings, lake and climate: the context for work in Geneva
The canton combines a dense city, heavily built-up inner-ring municipalities and more rural municipalities on the outskirts. You will find large rental buildings, older stone or masonry buildings, investment properties, more recent suburban construction and villas with gardens.
The climate has a direct influence on building projects. The lakeside and the plain have rather mild winters, but summers can be hot, especially in the city where streets and façades store heat. For a home this raises two separate questions: protection from the cold in winter and from the heat in summer. Insulation, windows, solar protection, ventilation and sometimes air conditioning are best considered together rather than one item after another.
Another particularity: many homes are rented and managed by property agencies. A tenant cannot decide alone to redo a bathroom or change a floor. An owner of a condominium flat, for their part, must take account of the building regulations and the common areas.
Building permits, energy and heritage: the key points in Geneva
Three subjects come up in almost every sizeable project. In every case the starting point is the same: ask the competent authority before ordering or starting anything.
Office des autorisations de construire
Building permits are issued by the canton through the Office des autorisations de construire. A project that changes the outward appearance, structure, siting or use of a building may be concerned: an extension, a conservatory, an additional storey, a new opening, a swimming pool, a garage. Conversely, a simple interior refresh rarely requires a procedure. The boundary is not always obvious: confirm it with the office or your municipality before incurring costs.
Energy law, OCEN and Programme Bâtiments
Energy is governed by the cantonal energy law (LEn) and overseen by the Office cantonal de l’énergie (OCEN). Subsidies under the Programme Bâtiments in Geneva depend on it. In practice, if you are thinking about insulation, a heat pump or another heating replacement, contact the OCEN before signing: the conditions, the eligible works and the order of the steps must be checked at the source. A free quote lets you put a figure on the project before filing an application.
Old town and protected districts
The old town and some districts are protected. In these areas, façades, windows, roofs, shutters and exterior joinery may be subject to specific requirements on materials, shapes or colours. Check with the municipality or the competent cantonal department whether your property is affected, before choosing a material or requesting a quote.
Typical work in the city, the urban belt and the Geneva countryside
Flats and buildings in the city of Geneva
In the city, most renovation is done indoors. An older flat often calls for a full or partial apartment renovation: interior demolition of partition walls, reworking of surfaces by a plasterer, then finishing with interior painting. Floors involve flooring or tiling, while the kitchen and hot water require kitchen renovation and bathroom renovation.
Dense buildings have their own constraints: access by stairs, a lift to be booked, noise hours, immediate neighbours. A craftsperson who knows these conditions will factor them into the quote, so mention them in your request. For the ceilings of old flats, a suspended ceiling can hide ducts or correct an uneven surface.
On the building envelope, façade renovation and thermal insulation mainly concern condominiums and building owners. Windows play a double role in the city, thermal and acoustic: see the page on windows and double glazing, as well as shutters and blinds for protection from the summer sun.
For nearby towns, see the pages on work in Geneva, work in Carouge, work in Lancy and work in Vernier.
Heating, energy and summer comfort
Replacing an old boiler is a frequent topic. Depending on the building, options include a heat pump, solar panels or a new water heater and boiler. A heating engineer can assess the existing installation and suggest suitable solutions. This is precisely the kind of project for which you should look at the OCEN framework before committing.
With hot summers in the city, air conditioning and ventilation (VMC) are also becoming topical questions. In a building, installing an outdoor unit may depend on the condominium regulations, the property agency or a permit: clarify this before requesting the quote.
Villas and houses on the outskirts
In residential and rural municipalities, projects change in scale: house extension, conservatory, patio, garage and carport, fencing and gate or even swimming pool construction. Many affect the outward appearance or the siting and may require a building permit. An architect helps frame a file of this type and cost the stages.
Electricity, plumbing and emergency repairs in the Geneva area
In older buildings, electricity and plumbing are often the first items to check. An electrician can work on an ageing electrical panel or install an EV charging station; in a condominium, the shared car park and the connection require the agreement of the building’s management. For water, a plumber works on pipes, while drain cleaning and emergency plumbing deal with breakdowns.
Request a quote for your work in Geneva
SOS Travaux is a neutral matching service: it does not employ craftspeople and carries out no work itself. You describe your project online, your request is passed on to craftspeople and companies in the area, who contact you to prepare a free, no-obligation quote. You remain free to compare, ask questions and decide.
To obtain comparable quotes, prepare the following:
- the exact nature of the work and, if possible, the surface areas concerned;
- the municipality and type of property: flat, villa, building, commercial premises;
- the floor, access, the presence of a lift and parking options;
- your status: owner, condominium owner or tenant, with the consent of the landlord or property agency;
- the desired schedule and any neighbour-related constraints;
- photos of the current state.
This information limits surprises. The cost of a project in Geneva varies with access, the condition of surfaces, the materials chosen and the scale of the work: only a quote prepared for your specific project sets it.
When you are ready, you can request a quote for your project. If a permit, a subsidy or heritage protection is involved, check first with the Office des autorisations de construire, the OCEN, your municipality or the competent cantonal department, then mention it in your request.
Updated 29 October 2026