Thônex real estate: an urban municipality on the doorstep of Geneva

The property market in Thônex.

The scarcity of available land shapes the Thônex market. Like its neighbours Chêne-Bourg and Chêne-Bougeries, with which it forms the Trois-Chêne area, the municipality has one of the highest densities in the canton and no longer has significant land reserves for new detached houses. As a result, any house put up for sale is keenly contested as soon as it is listed. Buyers looking for a villa must contend with a limited volume of listings, far smaller than for flats.

The rental segment follows a different logic. Its immediate proximity to central Geneva and its service by several tram lines make it a sought-after area for people working in the city who do not want to pay Geneva rents. This constant demand keeps rental properties turning over quickly, with a number of applications per listing markedly higher than in the canton’s more outlying municipalities.

For sellers, municipal taxation also comes into play. Thônex applies a rate of municipal surcharge (centimes additionnels) above the cantonal average, a factor that owners wishing to reinvest elsewhere in the canton often include in their net return calculation before setting their asking price.

Types of property.

The housing stock in Thônex consists of around 60% flats and 40% detached houses. This proportion reflects the gradual densification of the municipality, where apartment buildings have largely overtaken individual housing over recent decades. The remaining houses are mainly concentrated in the least densified residential pockets, away from the main roads.

To find out the average price per m² in Thônex and its recent trend, see our dedicated property prices page, regularly updated with our on-the-ground data.

Living in Thônex

Administratively separated from Chêne-Bourg at the end of the 19th century, Thônex has since developed its own identity within the Trois-Chêne area, without disowning its village past. The Château Blanc de Villette, which no longer exists, remains a heritage reference in local history, but it is the municipality’s present-day character that interests most of its residents and future residents today.

Neighbourhood life is centred mainly along the rue de Genève and the shopping streets of the municipal centre.

Cultural heritage.

– Château Blanc de Villette: 17th-century building, demolished in 1851.
– Maison forte de Villette: former fortification destroyed from 1305.

Where to go out?

– Espace culturel du Bois-Des-Arts
– Parc Motrice-Picasso
– Place de Graveson
– Piscine de Thônex

Moving to Thônex

Thônex attracts residents drawn by its transport links and its proximity to central Geneva, with a median rent of around CHF 33 per m² per month. Between the historic village, Belle-Terre and the border area of Moillesulaz, the rental offer covers a variety of properties, from older buildings to more recent housing.

• Mixed
• Family-friendly
• Urban

Schools

– 5 state schools (lower and middle primary)
– Private school

Transport

– Around fifteen TPG lines serve the municipality.
– Moillesulaz terminus at the French border.
– No CFF station within the municipality.

Access

Thônex occupies a pivotal position between Geneva and neighbouring Haute-Savoie, with constant cross-border traffic via Ambilly and Gaillard.

Shops

– 1 supermarket.
– Local shops.
– 1 post office.
– 1 pharmacy.
– 1 hospital.
– 100+ doctors.

The neighbourhoods of Thônex

In Thônex, the property market is best read by area, around the schools and transport routes that structure the municipality.

Thônex-Village

The historic heart of the municipality, laid out along the rue de Genève. It concentrates some of the local shops and older buildings, a central landmark for locating a property.

Belle-Terre

A residential area dominated by apartment buildings, close to the school of the same name. A quieter profile despite the overall density of the municipality.

Bois-des-Arts and Pont-Bochet

An intermediate area between apartment buildings and residential pockets of houses, served by the corresponding primary schools.

Moillesulaz

A border area organised around the tram terminus, marked by daily cross-border flows to and from neighbouring France.

Demographic profile.

Thônex had around 17’060 inhabitants in 2025, with an estimated density of between 4’421 and 4’466 inhabitants per km², one of the highest in the canton of Geneva. Since 2016, the population is thought to have grown by around 26%, an estimate to be treated with caution in the absence of confirmed annual data for each year, but consistent with the continuing densification of buildings observed in the municipality.

Selling a property in Thônex?

The sales market in Thônex reflects a structural tension between a dense population and a volume of available properties that remains modest. Detached houses, a minority of the local housing stock, are valued for their scarcity, while flats, which are more numerous, face stronger competition between similar properties.

• Strong demand
• Limited supply
• Family buyers

A market under pressure between supply and demand.

In Thônex, a property put up for sale benefits from a favourable ratio between the number of inhabitants and the volume of active listings, particularly for houses. This relative scarcity nevertheless calls for a valuation that takes into account the type of property and its proximity to tram routes, which have become a valuation criterion in their own right. Sound knowledge of the Thônex property market remains the best guarantee of a well-managed sale.

Municipal taxation.

Thônex applies a municipal tax rate of 44 centimes additionnels for 2026, ranking it 29th out of 45 Geneva municipalities, around 2.8 points above the cantonal average. As everywhere in the canton, any property transaction in Thônex remains subject to Geneva cantonal taxation, common to the whole canton. Transfer duties amount to 3% of the sale price, payable by the buyer in most cases. Property gains tax (IBGI) is payable by the seller in the event of a capital gain, on a sliding scale linked to the length of ownership, which can reach 50% for less than two years of ownership, down to a minimum of 2% beyond 25 years.

The stages of the sale

The high-end segment remains particularly active in the municipality. A property correctly positioned from the outset generally finds a buyer more quickly than one whose price is adjusted after several weeks.

1. No-obligation valuation An adviser visits your property and assesses it according to its location, size, general condition and market data. You receive a reasoned valuation, with no obligation on your part.
2. Value enhancement analysis Where relevant, our in-house design office (architects and engineers) examines your property’s potential: scope for extension, renovation, or simple improvements that can increase its value before it goes on the market.
3. Sales strategy Together we define the asking price, the marketing timetable and the most likely buyer profile for your property, in order to choose the most suitable channels and pace of promotion.
4. Marketing Virtual tour, video, professional photographs, presentation brochure and a carefully written description, followed by promotion through our channels, our partner network and our portfolio of qualified clients.
5. Viewings and negotiation Your adviser organises and attends every viewing, screens serious buyers and negotiates on your behalf through to the final agreement.
6. Signing at the notary’s We handle the administrative and legal follow-up of the file up to the appointment with the notary, in coordination with all parties.