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Thun: observed built density

Municipality in the canton of Bern · FSO no. 942 · Parcel data as of July 2025

Parcels
8’362

2 % of the canton

Municipal zones
30
Median utilization
83 %

Canton: 32 %

Switzerland: 10 %

Median GFZ
0.49

Canton: 0.09

Switzerland: 0.09

Median height
9.7 m

Canton: 9.5 m

Switzerland: 9.5 m

Median floors
2.5

Canton: 2.3

Switzerland: 2.3

About Thun

Thun is a municipality in the canton of Bern. The parcel data lists 8’362 parcels in 30 municipal zone types. The zone types with the most parcels are Wohnen W3 (4’068), Wohnen W2 (1’433) and Landwirtschaftszone LWZ (554).

The median parcel is built to a volume utilization of 83 %; half of the parcels lie between 47 % and 124 %. The canton median is 32 %, so Thun sits above it.

The median building height is 9.7 m at 2.5 floors, and the median floor-area ratio (GFZ) is 0.49. Parcels built in the last 20 years reach a mean volume utilization of 121 % (835 parcels), higher than the 106 % across all building years.

Parcels by municipal zone

Municipal zone types with their parcel count and median volume utilization
ZoneParcelsMedian utilization
Wohnen W34’06891 %
Wohnen W21’43378 %
Landwirtschaftszone LWZ5540 %
Wohnen W441988 %
Wohnen/Arbeiten WA427290 %
Bestandeszone26193 %
Arbeiten24965 %
Wohnen/Arbeiten WA522666 %
Wohnzone W3+156113 %
Zone für öffentliche Nutzung121127 %
Wald1190 %
Wohnen/Arbeiten WA39480 %
Other zones (18)390-

Volume utilization (ratioV)

Of the 8’295 parcels with a value, half lie between 47 % and 124 %. The median is 83 % and the mean 99 %.

0 %300 %+

Share of parcels by range

  • below 50 %26 %
  • 50 % to below 100 %36 %
  • 100 % to below 150 %22 %
  • 150 % and above16 %

Floor-area ratio (GFZ)

Of the 8’295 parcels with a value, half lie between 0.26 and 0.78. The median is 0.49 and the mean 0.66.

0.003.00+

Share of parcels by range

  • below 0.5052 %
  • 0.50 to below 1.0034 %
  • 1.00 to below 1.507 %
  • 1.50 and above6 %

Building height

Of the 6’720 parcels with a value, half lie between 8.1 m and 11.8 m. The median is 9.7 m and the mean 10.3 m.

0 m60 m+

Share of parcels by range

  • below 8 m23 %
  • 8 m to below 12 m55 %
  • 12 m to below 20 m20 %
  • 20 m and above2 %

Number of floors

Of the 5’023 parcels with a value, half lie between 1.9 and 3.2. The median is 2.5 and the mean 2.6.

016+

Share of parcels by range

  • below 25 %
  • 2 to below 346 %
  • 3 to below 545 %
  • 5 and above4 %

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 years8’362106 %
Last 60 years3’845127 %
Last 40 years2’467129 %
Last 20 years835121 %
Last 15 years537125 %
Last 10 years228114 %
Last 5 years8798 %

Open the map at Thun

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).