Olsberg
Municipality in the canton of Aargau · FSO no. 4257
Parcel data from Nov 2026, statistics computed on 29 Oct 2026.
Open map at the Olsberg centerThe parcel data lists 308 parcels in Olsberg, covering 4.6 km². 55.8% of them have at least one registered building. The median parcel measures 937 m².
Key figures
- Parcels
- 308
- 0.1% of the canton
- Total area
- 4.6 km²
- 0.3% of the canton
- Median area
- 937 m²
- Canton: 861 m²
- Switzerland: 881 m²
- Built share
- 55.8%
- Canton: 55.2%
- Switzerland: 51%
- Median year built
- 1993
- Canton: 1986
- Switzerland: 1975
About Olsberg
Olsberg ranks 193rd of 196 municipalities in the canton of Aargau by number of parcels and holds 0.1% of the canton's parcels on 0.3% of its area. The median parcel in Olsberg measures 937 m², about the same as the canton median of 861 m². Olsberg is about as built-up as the canton as a whole: 55.8% of its parcels have a building, against 55.2% across the canton.
The zones with the most parcels are Neubautenzone A (33.8%), Landwirtschaftszone (32.1%) and Kernbautenzone (12.3%). In total, Olsberg uses 12 zone designations.
According to the building register, Olsberg has 303 buildings with 192 dwellings, 0.6 dwellings per building on average. Most residential buildings are single-family houses (86.4%). Non-residential buildings account for 46.5% of all buildings.
Built parcels most often have their newest building from 1981 to 2000 (32% of them), and 33.7% have one from 2001 or later. The median year built, 1993, is more recent than in the canton as a whole (1986).
Built and unbuilt parcels
Built: 172 (55.8%)
Unbuilt: 136 (44.2%)
Parcels by zone
| Zone | Parcels | Area | Built |
|---|---|---|---|
| Neubautenzone A | 104 | 0.09 km² | 85.6% |
| Landwirtschaftszone | 99 | 1.61 km² | 23.2% |
| Kernbautenzone | 38 | 0.03 km² | 78.9% |
| Neubautenzone B | 24 | 0.02 km² | 83.3% |
| Wald | 20 | 2.66 km² | 15.0% |
| Uferschutzzone Violenbach | 9 | 0.04 km² | 11.1% |
| Kantonsstrasse | 5 | 0.02 km² | 20.0% |
| Spezialzone B Stift Olsberg | 3 | 0.01 km² | 66.7% |
| Zone für öffentliche Bauten und Anlagen | 3 | 0.01 km² | 66.7% |
| Gewässer | 1 | < 0.01 km² | 0.0% |
| Naturschutzzone Wald / seltene Waldstandorte | 1 | 0.01 km² | 0.0% |
| Spezialzone A Stift Olsberg | 1 | 0.11 km² | 100.0% |
Zone names are the municipal designations. A canton lists each wording separately.
Building stock
The building register lists 303 buildings with 192 dwellings here; 133 of them are single-family houses.
- Buildings
- 303
- Dwellings
- 192
- Single-family houses
- 133
- Building volume
- 296’532 m³
Buildings by category
Construction periods
Built parcels by construction period of their newest building
Maps and geodata for Olsberg
geopool works as a GIS and geoportal for Olsberg. Its parcel map shows the parcels of the official cadastral survey with their area, their zone from the municipal zoning plan and their buildings, on swisstopo maps. Building zones, the property map and the geodata of each parcel open on the geopool map. The ÖREB extract of a parcel (public-law restrictions on landownership) is in lookup.