Ronco sopra Ascona: observed built density
Municipality in the canton of Ticino · FSO no. 5125 · 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
- 1’853
1 % of the canton
- Municipal zones
- 30
- Median utilization
- 9 %
Canton: 10 %
Switzerland: 10 %
- Median GFZ
- 0.08
Canton: 0.09
Switzerland: 0.09
- Median height
- 10.4 m
Canton: 8.7 m
Switzerland: 9.5 m
- Median floors
- 1.9
Canton: 1.9
Switzerland: 2.3
About Ronco sopra Ascona
Ronco sopra Ascona is a municipality in the canton of Ticino. The parcel data lists 1’853 parcels in 30 municipal zone types. The zone types with the most parcels are Zona residenziale estensiva RE (612), Bosco (572) and Nucleo tradizionale NV (155).
The median parcel is built to a volume utilization of 9 %; half of the parcels lie between 5 % and 110 %. The canton median is 10 %, close to the level of Ronco sopra Ascona.
The median building height is 10.4 m at 1.9 floors, and the median floor-area ratio (GFZ) is 0.08.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Zona residenziale estensiva RE | 612 | 96 % |
| Bosco | 572 | 0 % |
| Nucleo tradizionale NV | 155 | 124 % |
| Area agricola - Pascolo | 85 | 26 % |
| Area agricola - Comparto alpestre | 68 | 0 % |
| Zona residenziale speciale a lago Rs | 45 | 11 % |
| Zona residenziale semi-intensiva RSI | 42 | 57 % |
| Vuoto pianificatorio | 38 | 0 % |
| Territorio senza destinazione specifica SDS | 31 | 336 % |
| Zona di protezione della natura | 25 | 0 % |
| Zona per attrezzature pubbliche AP | 24 | 0 % |
| Corso d'acqua, riale | 22 | 0 % |
| Other zones (18) | 134 | - |
Volume utilization (ratioV)
Of the 1’825 parcels with a value, half lie between 5 % and 110 %. The median is 9 % and the mean 68 %.
Share of parcels by range
- below 50 %62 %
- 50 % to below 100 %11 %
- 100 % to below 150 %9 %
- 150 % and above18 %
Floor-area ratio (GFZ)
Of the 1’825 parcels with a value, half lie between 0.04 and 0.50. The median is 0.08 and the mean 0.38.
Share of parcels by range
- below 0.5075 %
- 0.50 to below 1.0013 %
- 1.00 to below 1.505 %
- 1.50 and above7 %
Building height
Of the 805 parcels with a value, half lie between 7.6 m and 12.7 m. The median is 10.4 m and the mean 10.4 m.
Share of parcels by range
- below 8 m28 %
- 8 m to below 12 m41 %
- 12 m to below 20 m30 %
- 20 m and above1 %
Number of floors
Of the 866 parcels with a value, half lie between 1.2 and 2.5. The median is 1.9 and the mean 2.0.
Share of parcels by range
- below 234 %
- 2 to below 342 %
- 3 to below 523 %
- 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 | 1’853 | 73 % |
| Last 60 years | 328 | 166 % |
| Last 40 years | 128 | 137 % |
| Last 20 years | 25 | 127 % |
| Last 15 years | 14 | 134 % |
| Last 10 years | 3 | 139 % |
| Last 5 years | 1 | 45 % |
Open the map at Ronco sopra Ascona
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).