Bonaduz: observed built density
Municipality in the canton of Graubünden · FSO no. 3721 · Parcel data as of July 2025
- Parcels
- 2’115
1 % of the canton
- Municipal zones
- 25
- Median utilization
- 8 %
Canton: 8 %
Switzerland: 10 %
- Median GFZ
- 0.08
Canton: 0.08
Switzerland: 0.09
- Median height
- 8.6 m
Canton: 9.2 m
Switzerland: 9.5 m
- Median floors
- 2.2
Canton: 2.3
Switzerland: 2.3
About Bonaduz
Bonaduz is a municipality in the canton of Graubünden. The parcel data lists 2’115 parcels in 25 municipal zone types. The zone types with the most parcels are Landwirtschaftszone (997), Wohnzone 2 (282) and Kernzone (182).
The median parcel is built to a volume utilization of 8 %; half of the parcels lie between 4 % and 71 %. The canton median is 8 %, close to the level of Bonaduz.
The median building height is 8.6 m at 2.2 floors, and the median floor-area ratio (GFZ) is 0.08. Parcels built in the last 20 years reach a mean volume utilization of 111 % (236 parcels), higher than the 41 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Landwirtschaftszone | 997 | 0 % |
| Wohnzone 2 | 282 | 89 % |
| Kernzone | 182 | 40 % |
| Wohnzone 3 | 152 | 88 % |
| Wald | 105 | 0 % |
| Schrebergartenzone | 102 | 0 % |
| Wohnmischzone 3 | 41 | 119 % |
| Zone übriges Gemeindegebiet | 41 | 0 % |
| Wohnzone 2, Etappierung der Überbaubarkeit II | 39 | 100 % |
| Wohnzone 2, Etappierung der Überbaubarkeit I | 38 | 99 % |
| Wohnzone 2, Etappierung der Überbaubarkeit III | 27 | 73 % |
| Industrie- und Gewerbezone | 24 | 81 % |
| Other zones (13) | 85 | - |
Volume utilization (ratioV)
Of the 2’087 parcels with a value, half lie between 4 % and 71 %. The median is 8 % and the mean 37 %.
Share of parcels by range
- below 50 %70 %
- 50 % to below 100 %15 %
- 100 % to below 150 %11 %
- 150 % and above5 %
Floor-area ratio (GFZ)
Of the 2’087 parcels with a value, half lie between 0.04 and 0.42. The median is 0.08 and the mean 0.24.
Share of parcels by range
- below 0.5080 %
- 0.50 to below 1.0014 %
- 1.00 to below 1.504 %
- 1.50 and above2 %
Building height
Of the 761 parcels with a value, half lie between 7.0 m and 10.5 m. The median is 8.6 m and the mean 9.1 m.
Share of parcels by range
- below 8 m40 %
- 8 m to below 12 m45 %
- 12 m to below 20 m14 %
- 20 m and above1 %
Number of floors
Of the 622 parcels with a value, half lie between 1.8 and 2.9. The median is 2.2 and the mean 2.4.
Share of parcels by range
- below 29 %
- 2 to below 355 %
- 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 | 2’115 | 41 % |
| Last 60 years | 655 | 103 % |
| Last 40 years | 481 | 108 % |
| Last 20 years | 236 | 111 % |
| Last 15 years | 172 | 113 % |
| Last 10 years | 87 | 105 % |
| Last 5 years | 30 | 98 % |
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).