Pregny-Chambésy: observed built density
Municipality in the canton of Geneva · FSO no. 6634 · Parcel data as of July 2025
- Parcels
- 1’327
2 % of the canton
- Municipal zones
- 10
- Median utilization
- 61 %
Canton: 49 %
Switzerland: 10 %
- Median GFZ
- 0.29
Canton: 0.23
Switzerland: 0.09
- Median height
- 8.3 m
Canton: 9.3 m
Switzerland: 9.5 m
- Median floors
- 2.1
Canton: 2.4
Switzerland: 2.3
About Pregny-Chambésy
Pregny-Chambésy is a municipality in the canton of Geneva. The parcel data lists 1’327 parcels in 10 municipal zone types. The zone types with the most parcels are Zone de développement 5 (1’053), Zone de développement 4B protégée (113) and Zone de développement 3 (50).
The median parcel is built to a volume utilization of 61 %; half of the parcels lie between 9 % and 100 %. The canton median is 49 %, so Pregny-Chambésy sits above it.
The median building height is 8.3 m at 2.1 floors, and the median floor-area ratio (GFZ) is 0.29. Parcels built in the last 20 years reach a mean volume utilization of 113 % (285 parcels), higher than the 81 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Zone de développement 5 | 1’053 | 66 % |
| Zone de développement 4B protégée | 113 | 70 % |
| Zone de développement 3 | 50 | 10 % |
| Zone des bois et forêts | 47 | 0 % |
| Zone de verdure | 28 | 0 % |
| Zone agricole | 22 | 0 % |
| Zone de protection de la nature et du paysage | 5 | 0 % |
| Zone ferroviaire | 4 | 0 % |
| Zone sportive | 3 | 13 % |
| Zone des eaux et des rives | 2 | 50 % |
Volume utilization (ratioV)
Of the 1’310 parcels with a value, half lie between 9 % and 100 %. The median is 61 % and the mean 78 %.
Share of parcels by range
- below 50 %41 %
- 50 % to below 100 %34 %
- 100 % to below 150 %13 %
- 150 % and above12 %
Floor-area ratio (GFZ)
Of the 1’310 parcels with a value, half lie between 0.09 and 0.48. The median is 0.29 and the mean 0.38.
Share of parcels by range
- below 0.5078 %
- 0.50 to below 1.0015 %
- 1.00 to below 1.503 %
- 1.50 and above4 %
Building height
Of the 942 parcels with a value, half lie between 7.0 m and 9.7 m. The median is 8.3 m and the mean 8.6 m.
Share of parcels by range
- below 8 m45 %
- 8 m to below 12 m49 %
- 12 m to below 20 m6 %
- 20 m and above< 1 %
Number of floors
Of the 804 parcels with a value, half lie between 1.6 and 2.7. The median is 2.1 and the mean 2.1.
Share of parcels by range
- below 219 %
- 2 to below 352 %
- 3 to below 529 %
- 5 and above< 1 %
Building age cohorts
Mean volume utilization of the parcels built inside each window, from all years on record down to the last five. The windows overlap: the last 20 years include the last 5.
| Built in | Parcels | Mean utilization |
|---|---|---|
| All years | 1’327 | 81 % |
| Last 60 years | 696 | 101 % |
| Last 40 years | 500 | 106 % |
| Last 20 years | 285 | 113 % |
| Last 15 years | 214 | 116 % |
| Last 10 years | 163 | 121 % |
| Last 5 years | 84 | 119 % |
Open the map at Pregny-Chambésy
How to read this page
room shows observed built density: what has been built on the parcels, not what the zoning permits. Volume utilization (ratioV) compares the built volume of a parcel with the reference volume of its municipal zone type. The floor-area ratio (GFZ) is floor area divided by parcel area; building height and number of floors are taken from the buildings on a parcel. Figures pool all municipal zones of the area. Medians and quartiles are read from bins 10 points (ratioV), 0.1 (GFZ), 2 m (height) and 1 floor wide, so they are exact to within one bin; means are exact. A parcel counts in a distribution only when the parcel data has a value for it. The floors distribution leaves out parcels without a building (0 floors).