Rapperswil-Jona: observed built density
Municipality in the canton of St. Gallen · FSO no. 3340 · Parcel data as of July 2025
- Parcels
- 5’679
3 % of the canton
- Municipal zones
- 34
- Median utilization
- 58 %
Canton: 58 %
Switzerland: 10 %
- Median GFZ
- 0.41
Canton: 0.28
Switzerland: 0.09
- Median height
- 10.3 m
Canton: 9.6 m
Switzerland: 9.5 m
- Median floors
- 2.6
Canton: 2.4
Switzerland: 2.3
About Rapperswil-Jona
Rapperswil-Jona is a municipality in the canton of St. Gallen. The parcel data lists 5’679 parcels in 34 municipal zone types. The zone types with the most parcels are BauG Wohnzone W2c (1’404), BauG Wohnzone W3 (770) and BauG Landwirtschaftszone (594).
The median parcel is built to a volume utilization of 58 %; half of the parcels lie between 7 % and 92 %. The canton median is 58 %, close to the level of Rapperswil-Jona.
The median building height is 10.3 m at 2.6 floors, and the median floor-area ratio (GFZ) is 0.41. Parcels built in the last 20 years reach a mean volume utilization of 111 % (529 parcels), higher than the 74 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| BauG Wohnzone W2c | 1’404 | 77 % |
| BauG Wohnzone W3 | 770 | 76 % |
| BauG Landwirtschaftszone | 594 | 0 % |
| BauG Wohnzone W2b | 570 | 78 % |
| Hinweis.Wald | 359 | 0 % |
| Hinweis.Verkehrsflaeche iB | 334 | 0 % |
| BauG Kernzone Altstadt | 210 | 97 % |
| BauG Grünzone Naturschutz | 209 | 0 % |
| BauG Wohn-Gewerbezone WG3 | 141 | 61 % |
| BauG Wohn-Gewerbezone WG4 | 122 | 89 % |
| BauG Zone für öffentliche Bauten und Anlagen | 102 | 49 % |
| BauG Grünzone Erholung | 95 | 0 % |
| Other zones (22) | 769 | - |
Volume utilization (ratioV)
Of the 5’629 parcels with a value, half lie between 7 % and 92 %. The median is 58 % and the mean 65 %.
Share of parcels by range
- below 50 %45 %
- 50 % to below 100 %34 %
- 100 % to below 150 %15 %
- 150 % and above6 %
Floor-area ratio (GFZ)
Of the 5’629 parcels with a value, half lie between 0.07 and 0.75. The median is 0.41 and the mean 0.55.
Share of parcels by range
- below 0.5058 %
- 0.50 to below 1.0027 %
- 1.00 to below 1.508 %
- 1.50 and above6 %
Building height
Of the 3’737 parcels with a value, half lie between 8.5 m and 12.8 m. The median is 10.3 m and the mean 10.8 m.
Share of parcels by range
- below 8 m18 %
- 8 m to below 12 m51 %
- 12 m to below 20 m29 %
- 20 m and above2 %
Number of floors
Of the 2’900 parcels with a value, half lie between 1.9 and 3.3. The median is 2.6 and the mean 2.7.
Share of parcels by range
- below 29 %
- 2 to below 339 %
- 3 to below 545 %
- 5 and above7 %
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 | 5’679 | 74 % |
| Last 60 years | 2’615 | 92 % |
| Last 40 years | 1’613 | 99 % |
| Last 20 years | 529 | 111 % |
| Last 15 years | 377 | 114 % |
| Last 10 years | 257 | 119 % |
| Last 5 years | 124 | 121 % |
Open the map at Rapperswil-Jona
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).