Thônex: building age and utilization
Canton of Geneva · 2'512 parcels in municipal zones · Parcel data of September 2026
- Parcels in zones
- 2'512
- Municipal zones
- 10
- Median utilization (ratioV)
- 61%
- Newest building from 2006 or later
- 21%
- Median building height
- 7.9 m
- Median floors
- 2.1
Overview
Thônex: the parcel data lists 2'512 parcels in 10 municipal zones.
The median volume utilization (ratioV, as built today) is 61%, the average 88%. For comparison: canton of Geneva, median 49%.
21% of the parcels have a newest building from 2006 or later. Their average utilization is 118%, against 99% for all parcels.
The median building height is 7.9 m and the median number of floors is 2.1.
Building age
Each parcel is counted by the construction year of its newest building. The oldest band also holds parcels without a building year, such as unbuilt land.
| Newest building | Parcels | Share |
|---|---|---|
| 2021 or later | 112 | 4% |
| 2016-2020 | 166 | 7% |
| 2011-2015 | 81 | 3% |
| 2006-2010 | 165 | 7% |
| 1986-2005 | 472 | 19% |
| 1966-1985 | 395 | 16% |
| 1965 or earlier, or no year | 1'121 | 45% |
Utilization by construction window
| Newest building | Parcels | Average utilization |
|---|---|---|
| Built 2021 or later | 112 | 155% |
| Built 2016 or later | 278 | 136% |
| Built 2011 or later | 359 | 126% |
| Built 2006 or later | 524 | 118% |
| Built 1986 or later | 996 | 107% |
| Built 1966 or later | 1'391 | 116% |
| All parcels | 2'512 | 99% |
Utilization (ratioV)
ratioV is the volume utilization of a parcel in percent, as built today; values above 100% occur on densely built parcels. The lowest bucket is mostly land with little or no building volume.
| Utilization (ratioV) | Parcels | Share |
|---|---|---|
| Under 10% | 722 | 29% |
| 10-50% | 287 | 12% |
| 50-100% | 870 | 35% |
| 100-150% | 286 | 11% |
| 150-200% | 121 | 5% |
| 200% or more | 207 | 8% |
Median: 61% · Average: 88% · Based on 2'493 parcels with a value.
Building height
Building height in meters, for parcels with a height value.
| Building height | Parcels | Share |
|---|---|---|
| Under 6 m | 184 | 10% |
| 6-10 m | 1'276 | 73% |
| 10-16 m | 138 | 8% |
| 16-30 m | 142 | 8% |
| 30 m or more | 19 | 1% |
Median: 7.9 m · Average: 9.2 m · Based on 1'759 parcels with a value.
Floors
Number of floors, for parcels with a floor count.
| Floors | Parcels | Share |
|---|---|---|
| 1 | 1'038 | 48% |
| 2 | 659 | 30% |
| 3 | 320 | 15% |
| 4 | 20 | 0.9% |
| 5-6 | 73 | 3% |
| 7 or more | 64 | 3% |
Median: 2.1 · Average: 1.7 · Based on 2'174 parcels with a value.
Other municipalities in the canton
| Place | Parcels | Median utilization | Median floors |
|---|---|---|---|
| Veyrier | 3'377 | 72% | 2.2 |
| Vernier | 3'327 | 56% | 2 |
| Collonge-Bellerive | 3'258 | 61% | 1.8 |
| Bernex | 3'178 | 9% | 0.9 |
| Lancy | 2'632 | 50% | 2.2 |
| Plan-les-Ouates | 2'585 | 65% | 2.1 |
| Meyrin | 2'339 | 44% | 1.5 |
| Satigny | 2'280 | 7% | 0.7 |
| Chêne-Bougeries | 2'267 | 69% | 2.2 |
| Versoix | 2'062 | 62% | 1.7 |
| Onex | 1'596 | 79% | 2.2 |
| Carouge (GE) | 1'564 | 73% | 1.9 |
Explore
Method and data
The figures come from the Swiss parcel data (zone statistics of the RES service, pulled in September 2026). Each municipal zone is summarized on its own; a municipality is the sum of its zones, a canton the sum of its municipalities and Switzerland the sum of the cantons. Parcels outside a municipal zone are not counted.
Age uses the construction year of the newest building on a parcel. The distributions leave out the most extreme values, so the parcels with a value can be fewer than all parcels. Percentages are shares of the counts shown; medians are read from the buckets and are exact to within one bucket.
The pages describe what has been built and measured. They are not a forecast, a valuation or a statement of what may be built.