Silenen: observed built density
Municipality in the canton of Uri · FSO no. 1216 · Parcel data as of July 2025
- Parcels
- 1’627
9 % of the canton
- Municipal zones
- 21
- Median utilization
- 51 %
Canton: 58 %
Switzerland: 10 %
- Median GFZ
- 0.10
Canton: 0.19
Switzerland: 0.09
- Median height
- 8.9 m
Canton: 9.4 m
Switzerland: 9.5 m
- Median floors
- 2.2
Canton: 2.4
Switzerland: 2.3
About Silenen
Silenen is a municipality in the canton of Uri. The parcel data lists 1’627 parcels in 21 municipal zone types. The zone types with the most parcels are Landwirtschaftszone (722), Wohnzone 2 (266) and Wald (118).
The median parcel is built to a volume utilization of 51 %; half of the parcels lie between 7 % and 146 %. The canton median is 58 %, so Silenen sits below it.
The median building height is 8.9 m at 2.2 floors, and the median floor-area ratio (GFZ) is 0.10. Parcels built in the last 20 years reach a mean volume utilization of 339 % (187 parcels), higher than the 223 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Landwirtschaftszone | 722 | 24 % |
| Wohnzone 2 | 266 | 100 % |
| Wald | 118 | 0 % |
| Kernzone 3 Amsteg | 74 | 105 % |
| Wohn- und Gewerbezone 2 | 70 | 85 % |
| Verkehrsfläche innerhalb Bauzonen | 56 | 0 % |
| Wohn- und Gewerbezone 3 | 42 | 94 % |
| Kernzone 1 Silenen Dörfli | 36 | 149 % |
| Kernzone 4 Bristen | 34 | 109 % |
| Reservezone, unproduktiv | 33 | 0 % |
| Verkehrsfläche ausserhalb Bauzonen | 32 | 0 % |
| Wohnzone 3 | 32 | 103 % |
| Other zones (9) | 112 | - |
Volume utilization (ratioV)
Of the 1’600 parcels with a value, half lie between 7 % and 146 %. The median is 51 % and the mean 193 %.
Share of parcels by range
- below 50 %50 %
- 50 % to below 100 %14 %
- 100 % to below 150 %12 %
- 150 % and above24 %
Floor-area ratio (GFZ)
Of the 1’599 parcels with a value, half lie between 0.05 and 0.57. The median is 0.10 and the mean 0.34.
Share of parcels by range
- below 0.5071 %
- 0.50 to below 1.0020 %
- 1.00 to below 1.506 %
- 1.50 and above3 %
Building height
Of the 1’029 parcels with a value, half lie between 7.4 m and 10.2 m. The median is 8.9 m and the mean 8.9 m.
Share of parcels by range
- below 8 m33 %
- 8 m to below 12 m60 %
- 12 m to below 20 m7 %
- 20 m and above< 1 %
Number of floors
Of the 544 parcels with a value, half lie between 1.8 and 2.8. The median is 2.2 and the mean 2.3.
Share of parcels by range
- below 29 %
- 2 to below 356 %
- 3 to below 534 %
- 5 and above1 %
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 in | Parcels | Mean utilization |
|---|---|---|
| All years | 1’627 | 223 % |
| Last 60 years | 588 | 270 % |
| Last 40 years | 372 | 288 % |
| Last 20 years | 187 | 339 % |
| Last 15 years | 128 | 424 % |
| Last 10 years | 55 | 132 % |
| Last 5 years | 36 | 134 % |
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).