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Unterseen: observed built density

Municipality in the canton of Bern · FSO no. 593 · Parcel data as of July 2025

Parcels
1’855

< 1 % of the canton

Municipal zones
30
Median utilization
73 %

Canton: 32 %

Switzerland: 10 %

Median GFZ
0.39

Canton: 0.09

Switzerland: 0.09

Median height
9.0 m

Canton: 9.5 m

Switzerland: 9.5 m

Median floors
2.5

Canton: 2.3

Switzerland: 2.3

About Unterseen

Unterseen is a municipality in the canton of Bern. The parcel data lists 1’855 parcels in 30 municipal zone types. The zone types with the most parcels are Wohnzone W2 (861), Landwirtschaftszone (382) and Dorfzone (211).

The median parcel is built to a volume utilization of 73 %; half of the parcels lie between 8 % and 124 %. The canton median is 32 %, so Unterseen sits above it.

The median building height is 9.0 m at 2.5 floors, and the median floor-area ratio (GFZ) is 0.39. Parcels built in the last 20 years reach a mean volume utilization of 126 % (147 parcels), lower than the 285 % across all building years.

Parcels by municipal zone

Municipal zone types with their parcel count and median volume utilization
ZoneParcelsMedian utilization
Wohnzone W286186 %
Landwirtschaftszone3820 %
Dorfzone211153 %
Wohnzone W318685 %
Wohn- /Gewerbezone WG25459 %
Ferienhauszone4985 %
ZSF284 %
Wohn- /Gewerbezone WG325102 %
Arbeitszone1189 %
Naturschutzgebiet100 %
ZöN e Alterssiedlung50 %
ZöN hSchule50 %
Other zones (18)28-

Volume utilization (ratioV)

Of the 1’826 parcels with a value, half lie between 8 % and 124 %. The median is 73 % and the mean 91 %.

0 %300 %+

Share of parcels by range

  • below 50 %39 %
  • 50 % to below 100 %25 %
  • 100 % to below 150 %19 %
  • 150 % and above18 %

Floor-area ratio (GFZ)

Of the 1’826 parcels with a value, half lie between 0.07 and 0.74. The median is 0.39 and the mean 0.54.

0.003.00+

Share of parcels by range

  • below 0.5060 %
  • 0.50 to below 1.0026 %
  • 1.00 to below 1.507 %
  • 1.50 and above8 %

Building height

Of the 1’332 parcels with a value, half lie between 7.5 m and 10.9 m. The median is 9.0 m and the mean 9.4 m.

0 m60 m+

Share of parcels by range

  • below 8 m32 %
  • 8 m to below 12 m53 %
  • 12 m to below 20 m15 %
  • 20 m and above1 %

Number of floors

Of the 997 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 26 %
  • 2 to below 343 %
  • 3 to below 549 %
  • 5 and above2 %

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 years1’855285 %
Last 60 years724121 %
Last 40 years474134 %
Last 20 years147126 %
Last 15 years107138 %
Last 10 years49131 %
Last 5 years19111 %

Open the map at Unterseen

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).