Felsberg: observed built density
Municipality in the canton of Graubünden · FSO no. 3731 · Parcel data as of July 2025
- Parcels
- 1’465
1 % of the canton
- Municipal zones
- 18
- Median utilization
- 9 %
Canton: 8 %
Switzerland: 10 %
- Median GFZ
- 0.09
Canton: 0.08
Switzerland: 0.09
- Median height
- 8.6 m
Canton: 9.2 m
Switzerland: 9.5 m
- Median floors
- 2.4
Canton: 2.3
Switzerland: 2.3
About Felsberg
Felsberg is a municipality in the canton of Graubünden. The parcel data lists 1’465 parcels in 18 municipal zone types. The zone types with the most parcels are Landwirtschaftszone (620), Wohnzone 2 (352) and Wohnzone 3 (124).
The median parcel is built to a volume utilization of 9 %; half of the parcels lie between 4 % and 85 %. The canton median is 8 %, close to the level of Felsberg.
The median building height is 8.6 m at 2.4 floors, and the median floor-area ratio (GFZ) is 0.09. Parcels built in the last 20 years reach a mean volume utilization of 114 % (176 parcels), higher than the 46 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Landwirtschaftszone | 620 | 0 % |
| Wohnzone 2 | 352 | 79 % |
| Wohnzone 3 | 124 | 75 % |
| Gemischte Zone 2 | 79 | 99 % |
| Dorfkernzone Altdorf A | 64 | 110 % |
| Zone übriges Gemeindegebiet | 55 | 0 % |
| Wald | 49 | 0 % |
| Dorfkernzone Neudorf | 39 | 98 % |
| Gemischte Zone 3 | 24 | 75 % |
| Dorfkernzone Altdorf B | 15 | 95 % |
| Wohnzone 2A | 15 | 100 % |
| Gewerbezone | 11 | 98 % |
| Other zones (6) | 18 | - |
Volume utilization (ratioV)
Of the 1’443 parcels with a value, half lie between 4 % and 85 %. The median is 9 % and the mean 43 %.
Share of parcels by range
- below 50 %61 %
- 50 % to below 100 %21 %
- 100 % to below 150 %13 %
- 150 % and above5 %
Floor-area ratio (GFZ)
Of the 1’442 parcels with a value, half lie between 0.04 and 0.51. The median is 0.09 and the mean 0.33.
Share of parcels by range
- below 0.5074 %
- 0.50 to below 1.0017 %
- 1.00 to below 1.504 %
- 1.50 and above5 %
Building height
Of the 596 parcels with a value, half lie between 7.1 m and 10.6 m. The median is 8.6 m and the mean 8.9 m.
Share of parcels by range
- below 8 m42 %
- 8 m to below 12 m47 %
- 12 m to below 20 m11 %
- 20 m and above0 %
Number of floors
Of the 463 parcels with a value, half lie between 1.9 and 3.0. The median is 2.4 and the mean 2.5.
Share of parcels by range
- below 26 %
- 2 to below 348 %
- 3 to below 546 %
- 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 | 1’465 | 46 % |
| Last 60 years | 478 | 100 % |
| Last 40 years | 358 | 107 % |
| Last 20 years | 176 | 114 % |
| Last 15 years | 133 | 120 % |
| Last 10 years | 77 | 135 % |
| Last 5 years | 33 | 160 % |
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).