Furna: observed built density
Municipality in the canton of Graubünden · FSO no. 3862 · Parcel data as of July 2025
- Parcels
- 621
< 1 % of the canton
- Municipal zones
- 12
- Median utilization
- 8 %
Canton: 8 %
Switzerland: 10 %
- Median GFZ
- 0.07
Canton: 0.08
Switzerland: 0.09
- Median height
- 8.7 m
Canton: 9.2 m
Switzerland: 9.5 m
- Median floors
- 1.9
Canton: 2.3
Switzerland: 2.3
About Furna
Furna is a municipality in the canton of Graubünden. The parcel data lists 621 parcels in 12 municipal zone types. The zone types with the most parcels are Landwirtschaftszone (409), Wald (130) and Erstwohnungszone Ruedischhus (28).
The median parcel is built to a volume utilization of 8 %; half of the parcels lie between 4 % and 57 %. The canton median is 8 %, close to the level of Furna.
The median building height is 8.7 m at 1.9 floors, and the median floor-area ratio (GFZ) is 0.07.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Landwirtschaftszone | 409 | 7 % |
| Wald | 130 | 0 % |
| Erstwohnungszone Ruedischhus | 28 | 84 % |
| Wohnzone Börtji | 15 | 88 % |
| Zone übriges Gemeindegebiet | 11 | 0 % |
| Dorfzone | 9 | 59 % |
| Zone für öffentliche Bauten und Anlagen | 9 | 81 % |
| Freihaltezone | 3 | 100 % |
| Gewerbemischzone | 3 | 114 % |
| Zone für touristische Einrichtungen | 2 | 225 % |
| Lagerzone | 1 | 0 % |
| Zone für künftige bauliche Nutzung | 1 | 0 % |
Volume utilization (ratioV)
Of the 605 parcels with a value, half lie between 4 % and 57 %. The median is 8 % and the mean 70 %.
Share of parcels by range
- below 50 %74 %
- 50 % to below 100 %5 %
- 100 % to below 150 %6 %
- 150 % and above15 %
Floor-area ratio (GFZ)
Of the 605 parcels with a value, half lie between 0.03 and 0.10. The median is 0.07 and the mean 0.13.
Share of parcels by range
- below 0.5090 %
- 0.50 to below 1.008 %
- 1.00 to below 1.501 %
- 1.50 and above0 %
Building height
Of the 292 parcels with a value, half lie between 7.3 m and 9.8 m. The median is 8.7 m and the mean 8.7 m.
Share of parcels by range
- below 8 m34 %
- 8 m to below 12 m62 %
- 12 m to below 20 m3 %
- 20 m and above0 %
Number of floors
Of the 185 parcels with a value, half lie between 1.6 and 2.3. The median is 1.9 and the mean 1.9.
Share of parcels by range
- below 220 %
- 2 to below 369 %
- 3 to below 511 %
- 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 | 621 | 76 % |
| Last 60 years | 99 | 136 % |
| Last 40 years | 65 | 137 % |
| Last 20 years | 26 | 136 % |
| Last 15 years | 20 | 124 % |
| Last 10 years | 11 | 142 % |
| Last 5 years | 6 | 67 % |
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).