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Chancy: observed built density

Municipality in the canton of Geneva · FSO no. 6611 · Parcel data as of July 2025

Parcels
1’201

2 % of the canton

Municipal zones
5
Median utilization
7 %

Canton: 49 %

Switzerland: 10 %

Median GFZ
0.06

Canton: 0.23

Switzerland: 0.09

Median height
9.0 m

Canton: 9.3 m

Switzerland: 9.5 m

Median floors
2.6

Canton: 2.4

Switzerland: 2.3

About Chancy

Chancy is a municipality in the canton of Geneva. The parcel data lists 1’201 parcels in 5 municipal zone types. The zone types with the most parcels are Zone agricole (687), Zone de développement 4B protégée (278) and Zone des bois et forêts (230).

The median parcel is built to a volume utilization of 7 %; half of the parcels lie between 3 % and 13 %. The canton median is 49 %, so Chancy sits below it.

The median building height is 9.0 m at 2.6 floors, and the median floor-area ratio (GFZ) is 0.06. Parcels built in the last 20 years reach a mean volume utilization of 105 % (83 parcels), higher than the 45 % across all building years.

Parcels by municipal zone

Municipal zone types with their parcel count and median volume utilization
ZoneParcelsMedian utilization
Zone agricole6870 %
Zone de développement 4B protégée27879 %
Zone des bois et forêts2300 %
Zone des eaux et des rives50 %
Zone sportive1100 %

Volume utilization (ratioV)

Of the 1’192 parcels with a value, half lie between 3 % and 13 %. The median is 7 % and the mean 38 %.

0 %300 %+

Share of parcels by range

  • below 50 %80 %
  • 50 % to below 100 %7 %
  • 100 % to below 150 %6 %
  • 150 % and above7 %

Floor-area ratio (GFZ)

Of the 1’192 parcels with a value, half lie between 0.03 and 0.10. The median is 0.06 and the mean 0.20.

0.003.00+

Share of parcels by range

  • below 0.5085 %
  • 0.50 to below 1.008 %
  • 1.00 to below 1.504 %
  • 1.50 and above4 %

Building height

Of the 325 parcels with a value, half lie between 7.0 m and 10.7 m. The median is 9.0 m and the mean 8.8 m.

0 m60 m+

Share of parcels by range

  • below 8 m32 %
  • 8 m to below 12 m58 %
  • 12 m to below 20 m9 %
  • 20 m and above< 1 %

Number of floors

Of the 227 parcels with a value, half lie between 1.9 and 3.1. The median is 2.6 and the mean 2.4.

016+

Share of parcels by range

  • below 215 %
  • 2 to below 327 %
  • 3 to below 557 %
  • 5 and above0 %

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 inParcelsMean utilization
All years1’20145 %
Last 60 years209106 %
Last 40 years163111 %
Last 20 years83105 %
Last 15 years60108 %
Last 10 years12101 %
Last 5 years5114 %

Open the map at Chancy

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).