Alpthal: observed built density
Municipality in the canton of Schwyz · FSO no. 1361 · Parcel data as of July 2025
- Parcels
- 565
1 % of the canton
- Municipal zones
- 13
- Median utilization
- 31 %
Canton: 62 %
Switzerland: 10 %
- Median GFZ
- 0.09
Canton: 0.37
Switzerland: 0.09
- Median height
- 9.1 m
Canton: 10.2 m
Switzerland: 9.5 m
- Median floors
- 2.3
Canton: 2.6
Switzerland: 2.3
About Alpthal
Alpthal is a municipality in the canton of Schwyz. The parcel data lists 565 parcels in 13 municipal zone types. The zone types with the most parcels are Landwirtschaftszone (179), Wohnzone 1 Geschoss (140) and Wald (69).
The median parcel is built to a volume utilization of 31 %; half of the parcels lie between 6 % and 110 %. The canton median is 62 %, so Alpthal sits below it.
The median building height is 9.1 m at 2.3 floors, and the median floor-area ratio (GFZ) is 0.09. Parcels built in the last 20 years reach a mean volume utilization of 309 % (118 parcels), higher than the 182 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Landwirtschaftszone | 179 | 25 % |
| Wohnzone 1 Geschoss | 140 | 77 % |
| Wald | 69 | 0 % |
| Übriges Gemeindegebiet | 57 | 4 % |
| Wohnzone 2 Geschosse | 56 | 78 % |
| Wohngewerbezone 3 Geschosse | 19 | 61 % |
| Kernzone | 12 | 72 % |
| Gewässer | 10 | 0 % |
| Wohnzone 3 Geschosse | 10 | 129 % |
| Zone für öffentliche Bauten und Anlagen | 5 | 56 % |
| Wohngewerbezone 2 Geschosse | 4 | 54 % |
| Parkplatzzone | 3 | 0 % |
| Other zones (1) | 1 | - |
Volume utilization (ratioV)
Of the 550 parcels with a value, half lie between 6 % and 110 %. The median is 31 % and the mean 147 %.
Share of parcels by range
- below 50 %53 %
- 50 % to below 100 %18 %
- 100 % to below 150 %11 %
- 150 % and above18 %
Floor-area ratio (GFZ)
Of the 550 parcels with a value, half lie between 0.04 and 0.38. The median is 0.09 and the mean 0.20.
Share of parcels by range
- below 0.5084 %
- 0.50 to below 1.0015 %
- 1.00 to below 1.501 %
- 1.50 and above0 %
Building height
Of the 323 parcels with a value, half lie between 7.4 m and 10.7 m. The median is 9.1 m and the mean 9.1 m.
Share of parcels by range
- below 8 m32 %
- 8 m to below 12 m59 %
- 12 m to below 20 m9 %
- 20 m and above0 %
Number of floors
Of the 225 parcels with a value, half lie between 1.8 and 2.9. The median is 2.3 and the mean 2.3.
Share of parcels by range
- below 210 %
- 2 to below 350 %
- 3 to below 540 %
- 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 in | Parcels | Mean utilization |
|---|---|---|
| All years | 565 | 182 % |
| Last 60 years | 268 | 279 % |
| Last 40 years | 202 | 272 % |
| Last 20 years | 118 | 309 % |
| Last 15 years | 76 | 386 % |
| Last 10 years | 42 | 205 % |
| Last 5 years | 24 | 111 % |
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).