On its slope overlooking the Rhône, Onex combines 1960s estates and an old village, with some of the most affordable prices in the canton.
The Onex estate offers family apartments at entry prices that are rare in Geneva, which makes it an active market for first purchases. The old village and the low-rise areas near Onex-Parc bring a more upmarket segment, with houses that rarely change hands.
The closeness of the Rhône banks and the bus links to the centre support steady demand. Renovated properties with a balcony and open views stand out clearly.
Over the past 25 years, the price per square metre of a flat in Onex has gone from around CHF 5 000 to CHF 12 900, a change of +158 %. Over the last twelve months, the trend is +2,2 %.
These figures track the local market over time. They point to a trend, they do not replace the valuation of a specific property, which depends on its condition, its floor and its view.
Market data updated on July 6, 2026
An accurate value, calculated on the real transactions of the neighbourhood.
Value my property →In Onex, a flat changes hands at around CHF 11 900 per m² at the median, with a common range of CHF 6 900 to CHF 26 800 depending on the neighbourhood, the floor and the condition of the property.
The median price of a house in Onex is around CHF 13 000 per m² of living space. The plot, the orientation and the year of construction then move that figure noticeably.
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