Chur: observed built density
Municipality in the canton of Graubünden · FSO no. 3901 · Parcel data as of July 2025
- Parcels
- 15’806
7 % of the canton
- Municipal zones
- 47
- Median utilization
- 42 %
Canton: 8 %
Switzerland: 10 %
- Median GFZ
- 0.49
Canton: 0.08
Switzerland: 0.09
- Median height
- 10.9 m
Canton: 9.2 m
Switzerland: 9.5 m
- Median floors
- -
Canton: 2.3
Switzerland: 2.3
About Chur
Chur is a municipality in the canton of Graubünden. The parcel data lists 15’806 parcels in 47 municipal zone types. The zone types with the most parcels are Landwirtschaftszone (3’584), Wohnzone 2 (2’470) and Wohnzone 1 (1’837).
The median parcel is built to a volume utilization of 42 %; half of the parcels lie between 6 % and 97 %. The canton median is 8 %, so Chur sits above it.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Landwirtschaftszone | 3’584 | 0 % |
| Wohnzone 2 | 2’470 | 85 % |
| Wohnzone 1 | 1’837 | 79 % |
| Wohnzone 3 | 1’380 | 84 % |
| Wohnzone 4 | 1’204 | 81 % |
| Wald | 722 | 0 % |
| Übriges Gemeindegebiet | 638 | 0 % |
| Zentrumszone Altstadt 1 | 474 | 99 % |
| Gemischte Zone 4 | 425 | 78 % |
| Zentrumszone Altstadt 2 | 290 | 82 % |
| Zone für öffentliche Bauten und Anlagen | 256 | 32 % |
| Dorfzone | 248 | 56 % |
| Other zones (35) | 2’278 | - |
Volume utilization (ratioV)
Of the 15’730 parcels with a value, half lie between 6 % and 97 %. The median is 42 % and the mean 56 %.
Share of parcels by range
- below 50 %53 %
- 50 % to below 100 %24 %
- 100 % to below 150 %16 %
- 150 % and above8 %
Floor-area ratio (GFZ)
Of the 15’730 parcels with a value, half lie between 0.06 and 1.38. The median is 0.49 and the mean 1.08.
Share of parcels by range
- below 0.5050 %
- 0.50 to below 1.0015 %
- 1.00 to below 1.5012 %
- 1.50 and above23 %
Building height
Of the 8’552 parcels with a value, half lie between 8.6 m and 14.4 m. The median is 10.9 m and the mean 11.9 m.
Share of parcels by range
- below 8 m18 %
- 8 m to below 12 m42 %
- 12 m to below 20 m35 %
- 20 m and above5 %
Number of floors
The parcel data has too few values for this measure here.
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 | 15’806 | 58 % |
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).