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Olsberg

Municipality in the canton of Aargau · FSO no. 4257

Parcel data from Jul 2025, statistics computed on 26 Sept 2026.

Open map at the Olsberg center

The 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: 863 m²

Switzerland: 870 m²

Built share
55.8%

Canton: 55.4%

Switzerland: 52%

Median year built
1993

Canton: 1986

Switzerland: 1976

About Olsberg

Olsberg is a municipality in the canton of Aargau and holds 0.1% of the canton's parcels in the data, on 0.3% of their area. The median parcel in Olsberg measures 937 m², about the same as the canton median of 863 m². Olsberg is about as built-up as the canton as a whole: 55.8% of its parcels have a building, against 55.4% 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

Parcels by zone, the 12 largest zones first
ZoneParcels
Neubautenzone A1040.09 km²85.6%
Landwirtschaftszone991.61 km²23.2%
Kernbautenzone380.03 km²78.9%
Neubautenzone B240.02 km²83.3%
Wald202.66 km²15.0%
Uferschutzzone Violenbach90.04 km²11.1%
Kantonsstrasse50.02 km²20.0%
Spezialzone B Stift Olsberg30.01 km²66.7%
Zone für öffentliche Bauten und Anlagen30.01 km²66.7%
Gewässer1< 0.01 km²0.0%
Naturschutzzone Wald / seltene Waldstandorte10.01 km²0.0%
Spezialzone A Stift Olsberg10.11 km²100.0%

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
296’078 m³

Buildings by category

  • Residential154
  • Mixed use4
  • Non-residential141
  • Other4

Construction periods

Built parcels by construction period of their newest building
  • Before 19209
  • 1920-19458
  • 1946-19604
  • 1961-198034
  • 1981-200055
  • 2001-201029
  • 2011-202019
  • 2021 and later10
  • Unknown year4

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.

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