Lumnezia: building age and utilization
Canton of Graubünden · 5'648 parcels in municipal zones · Parcel data of September 2026
- Parcels in zones
- 5'648
- Municipal zones
- 58
- Median utilization (ratioV)
- 8%
- Newest building from 2006 or later
- 4%
- Median building height
- 8.9 m
- Median floors
- 0.7
Overview
Lumnezia: the parcel data lists 5'648 parcels in 58 municipal zones.
The median volume utilization (ratioV, as built today) is 8%, the average 45%. For comparison: canton of Graubünden, median 8%.
4% of the parcels have a newest building from 2006 or later. Their average utilization is 104%, against 49% for all parcels.
The median building height is 8.9 m and the median number of floors is 0.7.
Building age
Each parcel is counted by the construction year of its newest building. The oldest band also holds parcels without a building year, such as unbuilt land.
| Newest building | Parcels | Share |
|---|---|---|
| 2021 or later | 48 | 0.8% |
| 2016-2020 | 47 | 0.8% |
| 2011-2015 | 90 | 2% |
| 2006-2010 | 64 | 1% |
| 1986-2005 | 276 | 5% |
| 1966-1985 | 184 | 3% |
| 1965 or earlier, or no year | 4'939 | 87% |
Utilization by construction window
| Newest building | Parcels | Average utilization |
|---|---|---|
| Built 2021 or later | 48 | 99% |
| Built 2016 or later | 95 | 102% |
| Built 2011 or later | 185 | 104% |
| Built 2006 or later | 249 | 104% |
| Built 1986 or later | 525 | 106% |
| Built 1966 or later | 709 | 106% |
| All parcels | 5'648 | 49% |
Utilization (ratioV)
ratioV is the volume utilization of a parcel in percent, as built today; values above 100% occur on densely built parcels. The lowest bucket is mostly land with little or no building volume.
| Utilization (ratioV) | Parcels | Share |
|---|---|---|
| Under 10% | 3'500 | 63% |
| 10-50% | 360 | 6% |
| 50-100% | 645 | 12% |
| 100-150% | 557 | 10% |
| 150-200% | 258 | 5% |
| 200% or more | 257 | 5% |
Median: 8% · Average: 45% · Based on 5'577 parcels with a value.
Building height
Building height in meters, for parcels with a height value.
| Building height | Parcels | Share |
|---|---|---|
| Under 6 m | 161 | 6% |
| 6-10 m | 1'695 | 64% |
| 10-16 m | 802 | 30% |
| 16-30 m | 8 | 0.3% |
| 30 m or more | 1 | 0% |
Median: 8.9 m · Average: 9 m · Based on 2'667 parcels with a value.
Floors
Number of floors, for parcels with a floor count.
| Floors | Parcels | Share |
|---|---|---|
| 1 | 4'252 | 76% |
| 2 | 746 | 13% |
| 3 | 439 | 8% |
| 4 | 124 | 2% |
| 5-6 | 10 | 0.2% |
| 7 or more | 0 | 0% |
Median: 0.7 · Average: 0.6 · Based on 5'571 parcels with a value.
Other municipalities in the canton
| Place | Parcels | Median utilization | Median floors |
|---|---|---|---|
| Davos | 6'913 | 10% | 0.9 |
| Arosa | 6'903 | 8% | 0.7 |
| Bregaglia | 6'762 | 7% | 0.6 |
| Ilanz/Glion | 5'734 | 11% | 0.8 |
| Klosters | 5'711 | 10% | 0.9 |
| Valsot | 5'674 | 6% | 0.6 |
| Vaz/Obervaz | 4'724 | 9% | 0.8 |
| Domat/Ems | 4'540 | 8% | 0.7 |
| Poschiavo | 4'038 | 8% | 0.7 |
| Flims | 3'737 | 8% | 0.8 |
| Domleschg | 3'712 | 7% | 0.7 |
| Albula/Alvra | 3'610 | 7% | 0.7 |
Explore
Method and data
The figures come from the Swiss parcel data (zone statistics of the RES service, pulled in September 2026). Each municipal zone is summarized on its own; a municipality is the sum of its zones, a canton the sum of its municipalities and Switzerland the sum of the cantons. Parcels outside a municipal zone are not counted.
Age uses the construction year of the newest building on a parcel. The distributions leave out the most extreme values, so the parcels with a value can be fewer than all parcels. Percentages are shares of the counts shown; medians are read from the buckets and are exact to within one bucket.
The pages describe what has been built and measured. They are not a forecast, a valuation or a statement of what may be built.