Niederhelfenschwil: building age and utilization
Canton of St. Gallen · 1'768 parcels in municipal zones · Parcel data of September 2026
- Parcels in zones
- 1'768
- Municipal zones
- 19
- Median utilization (ratioV)
- 47%
- Newest building from 2006 or later
- 15%
- Median building height
- 9.8 m
- Median floors
- 0.9
Overview
Niederhelfenschwil: the parcel data lists 1'768 parcels in 19 municipal zones.
The median volume utilization (ratioV, as built today) is 47%, the average 96%. For comparison: canton of St. Gallen, median 58%.
15% of the parcels have a newest building from 2006 or later. Their average utilization is 130%, against 101% for all parcels.
The median building height is 9.8 m and the median number of floors is 0.9.
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 | 43 | 2% |
| 2016-2020 | 62 | 4% |
| 2011-2015 | 84 | 5% |
| 2006-2010 | 72 | 4% |
| 1986-2005 | 339 | 19% |
| 1966-1985 | 146 | 8% |
| 1965 or earlier, or no year | 1'022 | 58% |
Utilization by construction window
| Newest building | Parcels | Average utilization |
|---|---|---|
| Built 2021 or later | 43 | 171% |
| Built 2016 or later | 105 | 152% |
| Built 2011 or later | 189 | 144% |
| Built 2006 or later | 261 | 130% |
| Built 1986 or later | 600 | 127% |
| Built 1966 or later | 746 | 132% |
| All parcels | 1'768 | 101% |
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% | 819 | 47% |
| 10-50% | 62 | 4% |
| 50-100% | 405 | 23% |
| 100-150% | 266 | 15% |
| 150-200% | 63 | 4% |
| 200% or more | 131 | 8% |
Median: 47% · Average: 96% · Based on 1'746 parcels with a value.
Building height
Building height in meters, for parcels with a height value.
| Building height | Parcels | Share |
|---|---|---|
| Under 6 m | 29 | 3% |
| 6-10 m | 459 | 50% |
| 10-16 m | 435 | 47% |
| 16-30 m | 4 | 0.4% |
| 30 m or more | 0 | 0% |
Median: 9.8 m · Average: 9.8 m · Based on 927 parcels with a value.
Floors
Number of floors, for parcels with a floor count.
| Floors | Parcels | Share |
|---|---|---|
| 1 | 815 | 57% |
| 2 | 316 | 22% |
| 3 | 292 | 20% |
| 4 | 13 | 0.9% |
| 5-6 | 0 | 0% |
| 7 or more | 0 | 0% |
Median: 0.9 · Average: 1.1 · Based on 1'436 parcels with a value.
Other municipalities in the canton
| Place | Parcels | Median utilization | Median floors |
|---|---|---|---|
| St. Margrethen | 1'960 | 67% | 2.3 |
| Pfäfers | 1'947 | 10% | 0.8 |
| Oberbüren | 1'945 | 54% | 1.2 |
| Wittenbach | 1'936 | 69% | 2.5 |
| Schänis | 1'903 | 65% | 2.2 |
| Rebstein | 1'831 | 74% | 2.4 |
| Amden | 1'756 | 48% | 2.2 |
| Rorschacherberg | 1'753 | 64% | 2.5 |
| Jonschwil | 1'725 | 67% | 2.1 |
| Rüthi (SG) | 1'715 | 10% | 0.8 |
| Degersheim | 1'649 | 74% | 2.4 |
| Uznach | 1'625 | 72% | 2.7 |
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.