Thônex
Municipality in the canton of Geneva · FSO no. 6640
Parcel data from Jul 2025, statistics computed on 26 Sept 2026.
The parcel data lists 2’512 parcels in Thônex, covering 3.8 km². 70.5% of them have at least one registered building. The median parcel measures 647 m².
Key figures
- Parcels
- 2’512
- 3.5% of the canton
- Total area
- 3.8 km²
1.4% of the canton
- Median area
- 647 m²
Canton: 895 m²
Switzerland: 870 m²
- Built share
- 70.5%
Canton: 57.6%
Switzerland: 52%
- Median year built
- 1988
Canton: 1983
Switzerland: 1976
About Thônex
Thônex ranks 8th of 45 municipalities in the canton of Geneva by number of parcels and holds 3.5% of the canton's parcels on 1.4% of its area. The median parcel in Thônex measures 647 m², smaller than the canton median of 895 m². Thônex is more built-up than the canton as a whole: 70.5% of its parcels have a building, against 57.6% across the canton.
The zones with the most parcels are Zone de développement 5 (73%) and Zone de développement 3 (16%). In total, Thônex uses 10 zone designations.
According to the building register, Thônex has 3’207 buildings with 7’634 dwellings, 2.4 dwellings per building on average. Most residential buildings are single-family houses (78%). Non-residential buildings account for 41.7% of all buildings.
Built parcels most often have their newest building from 1981 to 2000 (28.6% of them), and 34.8% have one from 2001 or later. The median year built, 1988, is close to that of the canton as a whole (1983).
Built and unbuilt parcels
Built: 1’771 (70.5%)Unbuilt: 741 (29.5%)
Parcels by zone
| Zone | Parcels | Area | Built |
|---|---|---|---|
| Zone de développement 5 | 1’834 | 2.05 km² | 78.6% |
| Zone de développement 3 | 401 | 0.99 km² | 56.1% |
| Zone agricole | 122 | 0.46 km² | 18.0% |
| Zone de développement 4B protégée | 104 | 0.14 km² | 58.7% |
| Zone de développement industriel et artisanal | 29 | 0.04 km² | 55.2% |
| Zone de verdure | 11 | 0.06 km² | 36.4% |
| Zone ferroviaire | 4 | 0.01 km² | 0.0% |
| Zone des bois et forêts | 3 | < 0.01 km² | 0.0% |
| Zone des eaux et des rives | 2 | 0.01 km² | 0.0% |
| Zone sportive | 2 | 0.05 km² | 50.0% |
Zone names are the municipal designations. A canton lists each wording separately.
Building stock
The building register lists 3’207 buildings with 7’634 dwellings here; 1’430 of them are single-family houses.
- Buildings
- 3’207
- Dwellings
- 7’634
- Single-family houses
- 1’430
- Building volume
- 4.4 million m³
Buildings by category
Construction periods
Built parcels by construction period of their newest buildingMaps and geodata for Thônex
geopool works as a GIS and geoportal for Thônex. Its parcel map shows the parcels of the official cadastral survey with their area, their zone from the municipal zoning plan and their buildings, on swisstopo maps. Building zones, the property map and the geodata of each parcel open on the geopool map. The ÖREB extract of a parcel (public-law restrictions on landownership) is in lookup.
Explore more data for Thônex
- Building zones and density Thônexin room
- ÖREB extract Thônexin lookup
- Building age Thônexin roots
- Building heights and headroom Thônexin roofs
- Solar potential Thônexin soolar
- Points of interest and accessibility Thônexin scoore
- Tax rates Thônexin taxoo
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