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Kölliken: observed built density

Municipality in the canton of Aargau · FSO no. 4276 · Parcel data as of July 2025

Parcels
1’965

1 % of the canton

Municipal zones
22
Median utilization
75 %

Canton: 35 %

Switzerland: 10 %

Median GFZ
0.32

Canton: 0.13

Switzerland: 0.09

Median height
9.0 m

Canton: 9.3 m

Switzerland: 9.5 m

Median floors
2.0

Canton: 2.2

Switzerland: 2.3

About Kölliken

Kölliken is a municipality in the canton of Aargau. The parcel data lists 1’965 parcels in 22 municipal zone types. The zone types with the most parcels are Wohnzone W1 (876), Landwirtschaftszone (379) and Wohnzone W2 (206).

The median parcel is built to a volume utilization of 75 %; half of the parcels lie between 8 % and 110 %. The canton median is 35 %, so Kölliken sits above it.

The median building height is 9.0 m at 2.0 floors, and the median floor-area ratio (GFZ) is 0.32. Parcels built in the last 20 years reach a mean volume utilization of 112 % (315 parcels), higher than the 77 % across all building years.

Parcels by municipal zone

Municipal zone types with their parcel count and median volume utilization
ZoneParcelsMedian utilization
Wohnzone W187686 %
Landwirtschaftszone3790 %
Wohnzone W220681 %
Zentrumszone121106 %
Wohn- und Arbeitszone WA211991 %
Wohn- und Arbeitszone WA36684 %
Industriezone3878 %
Kantonsstrasse380 %
Wohnzone W326134 %
Wald180 %
Zone für öffentliche Bauten und Anlagen1885 %
Bahnfläche140 %
Other zones (10)46-

Volume utilization (ratioV)

Of the 1’943 parcels with a value, half lie between 8 % and 110 %. The median is 75 % and the mean 75 %.

0 %300 %+

Share of parcels by range

  • below 50 %38 %
  • 50 % to below 100 %31 %
  • 100 % to below 150 %21 %
  • 150 % and above11 %

Floor-area ratio (GFZ)

Of the 1’942 parcels with a value, half lie between 0.07 and 0.50. The median is 0.32 and the mean 0.32.

0.003.00+

Share of parcels by range

  • below 0.5075 %
  • 0.50 to below 1.0022 %
  • 1.00 to below 1.502 %
  • 1.50 and above< 1 %

Building height

Of the 1’251 parcels with a value, half lie between 7.5 m and 10.6 m. The median is 9.0 m and the mean 9.1 m.

0 m60 m+

Share of parcels by range

  • below 8 m31 %
  • 8 m to below 12 m61 %
  • 12 m to below 20 m8 %
  • 20 m and above< 1 %

Number of floors

Of the 963 parcels with a value, half lie between 1.7 and 2.4. The median is 2.0 and the mean 2.1.

016+

Share of parcels by range

  • below 213 %
  • 2 to below 367 %
  • 3 to below 519 %
  • 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 years1’96577 %
Last 60 years915108 %
Last 40 years656112 %
Last 20 years315112 %
Last 15 years226115 %
Last 10 years131120 %
Last 5 years58120 %

Open the map at Kölliken

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).