Metzerlen-Mariastein: observed built density
Municipality in the canton of Solothurn · FSO no. 2477 · Parcel data as of July 2025
- Parcels
- 938
1 % of the canton
- Municipal zones
- 15
- Median utilization
- 9 %
Canton: 29 %
Switzerland: 10 %
- Median GFZ
- 0.08
Canton: 0.10
Switzerland: 0.09
- Median height
- 9.1 m
Canton: 9.2 m
Switzerland: 9.5 m
- Median floors
- 2.0
Canton: 2.2
Switzerland: 2.3
About Metzerlen-Mariastein
Metzerlen-Mariastein is a municipality in the canton of Solothurn. The parcel data lists 938 parcels in 15 municipal zone types. The zone types with the most parcels are Landwirtschaftszone (299), Wohnzone, 2-geschossig (254) and Kernzone (97).
The median parcel is built to a volume utilization of 9 %; half of the parcels lie between 4 % and 92 %. The canton median is 29 %, so Metzerlen-Mariastein sits below it.
The median building height is 9.1 m at 2.0 floors, and the median floor-area ratio (GFZ) is 0.08. Parcels built in the last 20 years reach a mean volume utilization of 110 % (80 parcels), higher than the 72 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Landwirtschaftszone | 299 | 0 % |
| Wohnzone, 2-geschossig | 254 | 90 % |
| Kernzone | 97 | 112 % |
| Wald | 85 | 0 % |
| Verkehrsfläche Strasse | 69 | 0 % |
| Wohnzone Paradies | 46 | 68 % |
| Verkehrszone Strasse | 37 | 0 % |
| Wohnzone Engelsbad | 14 | 182 % |
| Zone für öffentliche Bauten und Anlagen | 12 | 0 % |
| Ortsbildschutzzone Mariastein | 11 | 107 % |
| Freihalte- und Gartenzone | 6 | 32 % |
| Gewässer | 3 | 0 % |
| Other zones (3) | 5 | - |
Volume utilization (ratioV)
Of the 925 parcels with a value, half lie between 4 % and 92 %. The median is 9 % and the mean 62 %.
Share of parcels by range
- below 50 %61 %
- 50 % to below 100 %19 %
- 100 % to below 150 %13 %
- 150 % and above7 %
Floor-area ratio (GFZ)
Of the 925 parcels with a value, half lie between 0.04 and 0.39. The median is 0.08 and the mean 0.21.
Share of parcels by range
- below 0.5085 %
- 0.50 to below 1.0011 %
- 1.00 to below 1.503 %
- 1.50 and above1 %
Building height
Of the 394 parcels with a value, half lie between 7.7 m and 10.7 m. The median is 9.1 m and the mean 9.3 m.
Share of parcels by range
- below 8 m28 %
- 8 m to below 12 m61 %
- 12 m to below 20 m11 %
- 20 m and above< 1 %
Number of floors
Of the 306 parcels with a value, half lie between 1.6 and 2.4. The median is 2.0 and the mean 2.0.
Share of parcels by range
- below 217 %
- 2 to below 363 %
- 3 to below 520 %
- 5 and above0 %
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 | 938 | 72 % |
| Last 60 years | 299 | 128 % |
| Last 40 years | 215 | 111 % |
| Last 20 years | 80 | 110 % |
| Last 15 years | 53 | 114 % |
| Last 10 years | 37 | 115 % |
| Last 5 years | 14 | 103 % |
Open the map at Metzerlen-Mariastein
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).