Luzein: observed built density
Municipality in the canton of Graubünden · FSO no. 3891 · Parcel data as of July 2025
- Parcels
- 2’856
1 % of the canton
- Municipal zones
- 20
- Median utilization
- 9 %
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
- 2.1
Canton: 2.3
Switzerland: 2.3
About Luzein
Luzein is a municipality in the canton of Graubünden. The parcel data lists 2’856 parcels in 20 municipal zone types. The zone types with the most parcels are Landwirtschaftszone (1’692), Wohnzone 2 (375) and Wald (223).
The median parcel is built to a volume utilization of 9 %; half of the parcels lie between 5 % and 95 %. The canton median is 8 %, so Luzein sits above it.
The median building height is 8.6 m at 2.1 floors, and the median floor-area ratio (GFZ) is 0.08. Parcels built in the last 20 years reach a mean volume utilization of 137 % (199 parcels), lower than the 153 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Landwirtschaftszone | 1’692 | 2 % |
| Wohnzone 2 | 375 | 76 % |
| Wald | 223 | 0 % |
| Übriges Gemeindegebiet | 152 | 0 % |
| Dorferweiterungszone | 104 | 76 % |
| Wohnzone 1 | 83 | 60 % |
| Dorfzone | 79 | 117 % |
| Wohnzone 3 | 39 | 111 % |
| Gewerbezone | 25 | 61 % |
| Wohn- und Gewerbezone 3 | 25 | 112 % |
| Erhaltungszone | 14 | 98 % |
| Zone für künftige bauliche Nutzung | 14 | 0 % |
| Other zones (8) | 31 | - |
Volume utilization (ratioV)
Of the 2’829 parcels with a value, half lie between 5 % and 95 %. The median is 9 % and the mean 111 %.
Share of parcels by range
- below 50 %64 %
- 50 % to below 100 %12 %
- 100 % to below 150 %8 %
- 150 % and above16 %
Floor-area ratio (GFZ)
Of the 2’829 parcels with a value, half lie between 0.04 and 0.31. The median is 0.08 and the mean 0.20.
Share of parcels by range
- below 0.5083 %
- 0.50 to below 1.0013 %
- 1.00 to below 1.503 %
- 1.50 and above1 %
Building height
Of the 1’493 parcels with a value, half lie between 6.6 m and 10.2 m. The median is 8.6 m and the mean 8.5 m.
Share of parcels by range
- below 8 m40 %
- 8 m to below 12 m54 %
- 12 m to below 20 m6 %
- 20 m and above< 1 %
Number of floors
Of the 1’076 parcels with a value, half lie between 1.6 and 2.8. The median is 2.1 and the mean 2.2.
Share of parcels by range
- below 218 %
- 2 to below 350 %
- 3 to below 531 %
- 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 | 2’856 | 153 % |
| Last 60 years | 714 | 187 % |
| Last 40 years | 473 | 158 % |
| Last 20 years | 199 | 137 % |
| Last 15 years | 139 | 130 % |
| Last 10 years | 81 | 129 % |
| Last 5 years | 38 | 111 % |
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).