Rossa: building age and utilization
Canton of Graubünden · 1'263 parcels in municipal zones · Parcel data of September 2026
- Parcels in zones
- 1'263
- Municipal zones
- 17
- Median utilization (ratioV)
- 8%
- Newest building from 2006 or later
- 0.8%
- Median building height
- 7 m
- Median floors
- 0.7
Overview
Rossa: the parcel data lists 1'263 parcels in 17 municipal zones.
The median volume utilization (ratioV, as built today) is 8%, the average 38%. For comparison: canton of Graubünden, median 8%.
0.8% of the parcels have a newest building from 2006 or later. Their average utilization is 117%, against 42% for all parcels.
The median building height is 7 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 | 3 | 0.2% |
| 2016-2020 | 5 | 0.4% |
| 2011-2015 | 1 | 0.1% |
| 2006-2010 | 1 | 0.1% |
| 1986-2005 | 59 | 5% |
| 1966-1985 | 26 | 2% |
| 1965 or earlier, or no year | 1'168 | 92% |
Utilization by construction window
| Newest building | Parcels | Average utilization |
|---|---|---|
| Built 2021 or later | 3 | 134% |
| Built 2016 or later | 8 | 126% |
| Built 2011 or later | 9 | 117% |
| Built 2006 or later | 10 | 117% |
| Built 1986 or later | 69 | 79% |
| Built 1966 or later | 95 | 79% |
| All parcels | 1'263 | 42% |
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% | 763 | 61% |
| 10-50% | 148 | 12% |
| 50-100% | 150 | 12% |
| 100-150% | 97 | 8% |
| 150-200% | 37 | 3% |
| 200% or more | 50 | 4% |
Median: 8% · Average: 38% · Based on 1'245 parcels with a value.
Building height
Building height in meters, for parcels with a height value.
| Building height | Parcels | Share |
|---|---|---|
| Under 6 m | 124 | 25% |
| 6-10 m | 351 | 70% |
| 10-16 m | 30 | 6% |
| 16-30 m | 0 | 0% |
| 30 m or more | 0 | 0% |
Median: 7 m · Average: 7.1 m · Based on 505 parcels with a value.
Floors
Number of floors, for parcels with a floor count.
| Floors | Parcels | Share |
|---|---|---|
| 1 | 1'068 | 86% |
| 2 | 163 | 13% |
| 3 | 10 | 0.8% |
| 4 | 0 | 0% |
| 5-6 | 0 | 0% |
| 7 or more | 0 | 0% |
Median: 0.7 · Average: 0.4 · Based on 1'241 parcels with a value.
Other municipalities in the canton
| Place | Parcels | Median utilization | Median floors |
|---|---|---|---|
| Pontresina | 1'394 | 8% | 0.8 |
| Laax | 1'381 | 44% | 1.9 |
| Sagogn | 1'362 | 7% | 0.6 |
| St. Moritz | 1'348 | 68% | 2.4 |
| Lostallo | 1'309 | 8% | 0.7 |
| Lantsch/Lenz | 1'284 | 7% | 0.7 |
| Thusis | 1'244 | 48% | 1 |
| Sils im Engadin/Segl | 1'225 | 7% | 0.7 |
| Samedan | 1'189 | 9% | 0.9 |
| Buseno | 1'170 | 7% | 0.6 |
| San Vittore | 1'162 | 9% | 0.8 |
| Fideris | 1'121 | 10% | 0.9 |
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.