Ascona: observed built density
Municipality in the canton of Ticino · FSO no. 5091 · Parcel data as of July 2025
The parcel data covers only part of the land in the canton of Ticino, so figures here may be incomplete.
- Parcels
- 2’177
2 % of the canton
- Municipal zones
- 29
- Median utilization
- 71 %
Canton: 10 %
Switzerland: 10 %
- Median GFZ
- 0.49
Canton: 0.09
Switzerland: 0.09
- Median height
- 9.8 m
Canton: 8.7 m
Switzerland: 9.5 m
- Median floors
- 2.1
Canton: 1.9
Switzerland: 2.3
About Ascona
Ascona is a municipality in the canton of Ticino. The parcel data lists 2’177 parcels in 29 municipal zone types. The zone types with the most parcels are Zona residenziale a 3 piani di pianura (567), Comparto soggetto al Piano particolareggiato del nucleo tradizionale (286) and Zona residenziale a 2 piani di pianura (258).
The median parcel is built to a volume utilization of 71 %; half of the parcels lie between 9 % and 124 %. The canton median is 10 %, so Ascona sits above it.
The median building height is 9.8 m at 2.1 floors, and the median floor-area ratio (GFZ) is 0.49. Parcels built in the last 20 years reach a mean volume utilization of 102 % (147 parcels), higher than the 87 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Zona residenziale a 3 piani di pianura | 567 | 71 % |
| Comparto soggetto al Piano particolareggiato del nucleo tradizionale | 286 | 158 % |
| Zona residenziale a 2 piani di pianura | 258 | 87 % |
| Zona residenziale unifamiliare a 2 piani | 218 | 75 % |
| Zona residenziale a 3 piani collinare | 171 | 92 % |
| Zona residenziale a 2 piani collinare | 144 | 92 % |
| Zona residenziale - commerciale | 127 | 41 % |
| Zona forestale | 96 | 0 % |
| Zona residenziale a 4 piani | 89 | 92 % |
| Strada di servizio in ZE | 36 | 0 % |
| Zona agricola | 36 | 0 % |
| Zona per edifici e attrezzature di interesse pubblico di proprietà comunale | 36 | 11 % |
| Other zones (17) | 113 | - |
Volume utilization (ratioV)
Of the 2’149 parcels with a value, half lie between 9 % and 124 %. The median is 71 % and the mean 84 %.
Share of parcels by range
- below 50 %39 %
- 50 % to below 100 %25 %
- 100 % to below 150 %19 %
- 150 % and above17 %
Floor-area ratio (GFZ)
Of the 2’148 parcels with a value, half lie between 0.09 and 0.92. The median is 0.49 and the mean 0.71.
Share of parcels by range
- below 0.5051 %
- 0.50 to below 1.0027 %
- 1.00 to below 1.5011 %
- 1.50 and above11 %
Building height
Of the 1’575 parcels with a value, half lie between 7.4 m and 12.9 m. The median is 9.8 m and the mean 10.3 m.
Share of parcels by range
- below 8 m31 %
- 8 m to below 12 m37 %
- 12 m to below 20 m30 %
- 20 m and above2 %
Number of floors
Of the 1’597 parcels with a value, half lie between 1.4 and 3.0. The median is 2.1 and the mean 2.3.
Share of parcels by range
- below 226 %
- 2 to below 339 %
- 3 to below 531 %
- 5 and above4 %
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 | 2’177 | 87 % |
| Last 60 years | 713 | 111 % |
| Last 40 years | 434 | 105 % |
| Last 20 years | 147 | 102 % |
| Last 15 years | 98 | 103 % |
| Last 10 years | 41 | 90 % |
| Last 5 years | 17 | 81 % |
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).