Arosa
Municipality in the canton of Graubünden · FSO no. 3921
Parcel data from Nov 2026, statistics computed on 29 Oct 2026.
Open map at the Arosa centerThe parcel data lists 6’903 parcels in Arosa, covering 154.8 km². 29.6% of them have at least one registered building. The median parcel measures 1’412 m².
Key figures
- Parcels
- 6’903
- 3.1% of the canton
- Total area
- 154.8 km²
- 2.2% of the canton
- Median area
- 1’412 m²
- Canton: 1’110 m²
- Switzerland: 881 m²
- Built share
- 29.6%
- Canton: 38.7%
- Switzerland: 51%
- Median year built
- 1953
- Canton: 1965
- Switzerland: 1975
About Arosa
Arosa ranks 5th of 100 municipalities in the canton of Graubünden by number of parcels and holds 3.1% of the canton's parcels on 2.2% of its area. The median parcel in Arosa measures 1’412 m², larger than the canton median of 1’110 m². Arosa is less built-up than the canton as a whole: 29.6% of its parcels have a building, against 38.7% across the canton.
The zones with the most parcels are Landwirtschaftszone (57.1%), Wald (12.1%) and Dorfzone c (5.4%). In total, Arosa uses 38 zone designations.
According to the building register, Arosa has 2’224 buildings with 6’036 dwellings, 2.7 dwellings per building on average. Most residential buildings are single-family houses (60%). Non-residential buildings account for 6.4% of all buildings.
Built parcels most often have their newest building from before 1920 (30.9% of them), and 11% have one from 2001 or later. The median year built, 1953, is earlier than in the canton as a whole (1965).
Built and unbuilt parcels
Built: 2’043 (29.6%)
Unbuilt: 4’860 (70.4%)
Parcels by zone
| Zone | Parcels | Area | Built |
|---|---|---|---|
| Landwirtschaftszone | 3’945 | 74.17 km² | 15.6% |
| Wald | 837 | 44.11 km² | 4.7% |
| Dorfzone c | 370 | 0.14 km² | 65.9% |
| Wohnzone 2 | 314 | 0.25 km² | 88.2% |
| Übriges Gemeindegebiet | 284 | 34.65 km² | 6.0% |
| Wohnzone 1 | 243 | 0.21 km² | 85.6% |
| Dorfzone a | 191 | 0.29 km² | 89.0% |
| Erhaltungszone | 124 | 0.04 km² | 78.2% |
| Dorfzone b | 90 | 0.05 km² | 85.6% |
| Zone für Grünflächen | 80 | 0.06 km² | 15.0% |
| Zone für öffentliche Bauten und Anlagen | 75 | 0.11 km² | 25.3% |
| Wohnmischzone Bofel | 63 | 0.02 km² | 79.4% |
| Other zones (26 labels) | 287 | 0.69 km² | 76.3% |
Zone names are the municipal designations. A canton lists each wording separately.
Building stock
The building register lists 2’224 buildings with 6’036 dwellings here; 1’073 of them are single-family houses.
- Buildings
- 2’224
- Dwellings
- 6’036
- Single-family houses
- 1’073
- Building volume
- 4.5 million m³
Buildings by category
Construction periods
Built parcels by construction period of their newest building
Maps and geodata for Arosa
geopool works as a GIS and geoportal for Arosa. Its parcel map shows the parcels of the official cadastral survey with their area, their zone from the municipal zoning plan and their buildings, on swisstopo maps. Building zones, the property map and the geodata of each parcel open on the geopool map. The ÖREB extract of a parcel (public-law restrictions on landownership) is in lookup.