Troinex property: buying, selling and understanding the local market

The property market in Troinex.

Neighbouring Veyrier, Carouge and Plan-les-Ouates, Troinex stands out for a property market that is among the most highly valued on the left bank of Geneva. The median sale price reaches 13’284 CHF/m², driven by steady appreciation over several years. This price trend is partly explained by the scarcity of available land, in a municipality where agricultural land still covers a large share of the territory.

Demand in Troinex comes largely from Geneva families looking for space without wanting to move far from the cantonal centre. This search for villas and large flats, combined with limited supply, keeps constant pressure on prices. The Parc des Crêts development, completed between 2020 and 2024, has nonetheless renewed part of the municipality's housing stock by introducing new homes in the villa zone.

In such a tight market, detailed knowledge of the different areas of Troinex, between the historic village and the more recent residential districts, remains decisive before any plan to buy or sell property in Troinex.

Types of property in Troinex.

The exact split between detached houses and flats is not available for Troinex for the recent period. As an estimate, based on the residential and rural character of the municipality, detached houses would account for between 50 and 60%, against 40 to 50% for flats, with no precise figures confirmed to date.

Life in Troinex

Human occupation of the Troinex site dates back to the Neolithic, as shown by the Pierre-aux-Dames, a menhir engraved in the Gallo-Roman period with figures of Celtic deities. In the Middle Ages the territory came under the priory of Saint-Victor, before passing to the Crown of Sardinia. The Treaty of Turin, signed in March 1816, ceded Troinex to Geneva, and the municipality became independent in 1817, separating from Veyrier.

Cultural heritage.

– Pierre-aux-Dames.
– Troinex Protestant church.
– The wine estate.

Going out

– Restaurant La Chaumière.
– Parc Malbine.
– La Maison Forte de Troinex.

Moving to Troinex.

Moving to Troinex means choosing a residential municipality at the foot of the Salève, with one of the strongest population growth rates in the canton. The median rent stands at 34 CHF per m² per month. Local shops remain limited, however, with a single grocery and two restaurants recorded, and no bakery, pharmacy or supermarket listed to date.

• Mixed
• Quiet
• Rural

Schools

– École primaire de Troinex.
– Cycle d’orientation de Drize.
– Cycle d’orientation de Pinchat.

Transport

– TPG bus line.
– No CFF railway station.

Access

Located at the foot of the Salève, close to the French border

Shops and services

– Épicerie de Troinex.
– Restaurant La Chaumière.
– 3 medical practices.
– 1 post office.
– 1 bank.

Neighbourhoods of Troinex.

In Troinex, the property market varies noticeably between the historic centre and the more recent residential areas. Each area has a different building profile, which is key to refining a search or a valuation. The following two areas structure part of the municipality.

The village

Around the place de la Mairie, the village brings together the municipality's historic landmarks: the replica of the Pierre-aux-Dames, installed in 1998, and the Protestant church built in 1958. This area remains the central reference point for any property search in the municipality.

Parc des Crêts

Completed between 2020 and 2024, the Parc des Crêts is the largest residential development in a villa zone in the canton. This recent area of new buildings differs from the older housing of the village and meets a different property demand in Troinex.

Demographic profile.

Troinex had 3’365 inhabitants in 2025. Between 2010 and 2023, its population grew by 30.8%, compared with 14.6% for the canton of Geneva as a whole and 9.4% for Switzerland over the same period. Population density ranges from 920 to 981 inhabitants per km² for 2024 and 2025, a high level for a municipality that is still largely agricultural.

Selling a property in Troinex?

Selling in Troinex takes place in a tight market, with a rental vacancy rate close to zero and around 35 property transactions recorded each year. This relative scarcity of supply, combined with sustained demand from Geneva families, works in favour of owners who put their property on the market in Troinex.

• Strong demand
• Limited supply
• Family buyers

Time to sell

The average time to sell in Troinex is 95 days. In a market where demand remains sustained against limited supply, setting the right price from the outset is the decisive factor in reducing the marketing period of a property, whether a villa in the village or a home in the Parc des Crêts.

Municipal taxation.

The municipal additional tax rate (centimes additionnels) in Troinex is 40 centimes for 2026, unchanged since 2025, slightly below the cantonal average of 41.4 centimes. Beyond municipal taxation, every property transaction in Geneva is subject to a common cantonal framework: transfer duties of 3% payable by the buyer, and a tax on property profits and gains (IBGI) whose sliding scale can reach 50% for a sale within two years of ownership, falling to 2% after 25 years. This cantonal property tax applies in Troinex in the same way as elsewhere in the canton.

The steps of a sale

The high-end segment remains particularly active in the municipality. A property correctly positioned from the moment it is put on the market 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 based on 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 the potential of your property: possible extension, renovation or simple improvements that may increase its value before it goes on the market.
3. Sales strategy Together we set 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 advertising.
4. Marketing Virtual tour, video, professional photographs, presentation brochure and a carefully written description, followed by distribution 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 We handle the administrative and legal follow-up of the file up to the appointment with the notary, in coordination with all parties.