Lancy: observed built density
Municipality in the canton of Geneva · FSO no. 6628 · Parcel data as of July 2025
- Parcels
- 2’632
4 % of the canton
- Municipal zones
- 10
- Median utilization
- 50 %
Canton: 49 %
Switzerland: 10 %
- Median GFZ
- 0.35
Canton: 0.23
Switzerland: 0.09
- Median height
- 10.1 m
Canton: 9.3 m
Switzerland: 9.5 m
- Median floors
- 2.6
Canton: 2.4
Switzerland: 2.3
About Lancy
Lancy is a municipality in the canton of Geneva. The parcel data lists 2’632 parcels in 10 municipal zone types. The zone types with the most parcels are Zone de développement 3 (1’143), Zone de développement 5 (1’054) and Zone de développement 4B protégée (252).
The median parcel is built to a volume utilization of 50 %; half of the parcels lie between 7 % and 106 %. The canton median is 49 %, close to the level of Lancy.
The median building height is 10.1 m at 2.6 floors, and the median floor-area ratio (GFZ) is 0.35. Parcels built in the last 20 years reach a mean volume utilization of 116 % (473 parcels), higher than the 77 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Zone de développement 3 | 1’143 | 10 % |
| Zone de développement 5 | 1’054 | 69 % |
| Zone de développement 4B protégée | 252 | 72 % |
| Zone de développement industriel et artisanal | 72 | 27 % |
| Zone des bois et forêts | 39 | 0 % |
| Zone de verdure | 33 | 34 % |
| Zone ferroviaire | 29 | 76 % |
| Zone agricole | 6 | 0 % |
| Zone sportive | 3 | 0 % |
| Zone des eaux et des rives | 1 | 0 % |
Volume utilization (ratioV)
Of the 2’612 parcels with a value, half lie between 7 % and 106 %. The median is 50 % and the mean 72 %.
Share of parcels by range
- below 50 %50 %
- 50 % to below 100 %23 %
- 100 % to below 150 %13 %
- 150 % and above14 %
Floor-area ratio (GFZ)
Of the 2’612 parcels with a value, half lie between 0.08 and 1.02. The median is 0.35 and the mean 1.12.
Share of parcels by range
- below 0.5061 %
- 0.50 to below 1.0014 %
- 1.00 to below 1.504 %
- 1.50 and above21 %
Building height
Of the 1’762 parcels with a value, half lie between 8.0 m and 15.7 m. The median is 10.1 m and the mean 13.3 m.
Share of parcels by range
- below 8 m25 %
- 8 m to below 12 m39 %
- 12 m to below 20 m18 %
- 20 m and above18 %
Number of floors
Of the 1’544 parcels with a value, half lie between 1.7 and 4.5. The median is 2.6 and the mean 3.6.
Share of parcels by range
- below 218 %
- 2 to below 331 %
- 3 to below 527 %
- 5 and above25 %
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 | 2’632 | 77 % |
| Last 60 years | 1’076 | 110 % |
| Last 40 years | 829 | 108 % |
| Last 20 years | 473 | 116 % |
| Last 15 years | 349 | 123 % |
| Last 10 years | 226 | 133 % |
| Last 5 years | 119 | 133 % |
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).