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Prilly: observed built density

Municipality in the canton of Vaud · FSO no. 5589 · Parcel data as of July 2025

Parcels
1’134

< 1 % of the canton

Municipal zones
16
Median utilization
50 %

Canton: 9 %

Switzerland: 10 %

Median GFZ
0.38

Canton: 0.09

Switzerland: 0.09

Median height
-

Canton: -

Switzerland: 9.5 m

Median floors
3.2

Canton: 2.4

Switzerland: 2.3

About Prilly

Prilly is a municipality in the canton of Vaud. The parcel data lists 1’134 parcels in 16 municipal zone types. The zone types with the most parcels are Zone d'habitation de faible densité 15 LAT (373), Zone d'habitation de moyenne densité 15 LAT (327) and Zone d'habitation de forte densité 15 LAT (158).

The median parcel is built to a volume utilization of 50 %; half of the parcels lie between 9 % and 85 %. The canton median is 9 %, so Prilly sits above it.

Parcels built in the last 20 years reach a mean volume utilization of 118 % (96 parcels), higher than the 97 % across all building years.

Parcels by municipal zone

Municipal zone types with their parcel count and median volume utilization
ZoneParcelsMedian utilization
Zone d'habitation de faible densité 15 LAT37362 %
Zone d'habitation de moyenne densité 15 LAT32755 %
Zone d'habitation de forte densité 15 LAT15842 %
Zone de desserte 15 LAT800 %
Zone d'habitation de forte densité 15 LAT - zone de site construit protégé5594 %
Zone affectée à des besoins publics 15 LAT510 %
Zone d'activités économiques 15 LAT361 %
Zone d'habitation de moyenne densité 15 LAT - zone de site construit protégé1754 %
Zone centrale 15 LAT137 %
Aire forestière 18 LAT110 %
Zone agricole 16 LAT453 %
Zone ferroviaire 15 LAT310 %
Other zones (4)6-

Volume utilization (ratioV)

Of the 1’115 parcels with a value, half lie between 9 % and 85 %. The median is 50 % and the mean 85 %.

0 %300 %+

Share of parcels by range

  • below 50 %50 %
  • 50 % to below 100 %33 %
  • 100 % to below 150 %11 %
  • 150 % and above7 %

Floor-area ratio (GFZ)

Of the 1’115 parcels with a value, half lie between 0.09 and 0.69. The median is 0.38 and the mean 0.59.

0.003.00+

Share of parcels by range

  • below 0.5064 %
  • 0.50 to below 1.0020 %
  • 1.00 to below 1.507 %
  • 1.50 and above9 %

Building height

The parcel data has too few values for this measure here.

Number of floors

Of the 640 parcels with a value, half lie between 2.5 and 4.2. The median is 3.2 and the mean 3.5.

016+

Share of parcels by range

  • below 23 %
  • 2 to below 321 %
  • 3 to below 558 %
  • 5 and above19 %

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 years1’13497 %
Last 60 years307146 %
Last 40 years160130 %
Last 20 years96118 %
Last 15 years77111 %
Last 10 years53116 %
Last 5 years24141 %

Open the map at Prilly

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).