Wittnau
Municipality in the canton of Aargau · FSO no. 4181
Parcel data from Nov 2026, statistics computed on 29 Oct 2026.
Open map at the Wittnau centerThe parcel data lists 1’476 parcels in Wittnau, covering 11.2 km². 36.4% of them have at least one registered building. The median parcel measures 1’411 m².
Key figures
- Parcels
- 1’476
- 0.5% of the canton
- Total area
- 11.2 km²
- 0.8% of the canton
- Median area
- 1’411 m²
- Canton: 861 m²
- Switzerland: 881 m²
- Built share
- 36.4%
- Canton: 55.2%
- Switzerland: 51%
- Median year built
- 1989
- Canton: 1986
- Switzerland: 1975
About Wittnau
Wittnau ranks 81st of 196 municipalities in the canton of Aargau by number of parcels and holds 0.5% of the canton's parcels on 0.8% of its area. The median parcel in Wittnau measures 1’411 m², larger than the canton median of 861 m². Wittnau is less built-up than the canton as a whole: 36.4% of its parcels have a building, against 55.2% across the canton.
The zones with the most parcels are Landwirtschaftszone (35.4%), Wald (21.3%) and Wohnzone 2 (20.6%). In total, Wittnau uses 16 zone designations.
According to the building register, Wittnau has 835 buildings with 678 dwellings, 0.8 dwellings per building on average. Most residential buildings are single-family houses (73.9%). Non-residential buildings account for 48% of all buildings.
Built parcels most often have their newest building from 1981 to 2000 (30.1% of them), and 30.7% have one from 2001 or later. The median year built, 1989, is close to that of the canton as a whole (1986).
Built and unbuilt parcels
Built: 538 (36.4%)
Unbuilt: 938 (63.6%)
Parcels by zone
| Zone | Parcels | Area | Built |
|---|---|---|---|
| Landwirtschaftszone | 522 | 4.36 km² | 16.1% |
| Wald | 314 | 5.80 km² | 5.4% |
| Wohnzone 2 | 304 | 0.25 km² | 77.3% |
| Dorfkernzone | 197 | 0.13 km² | 78.7% |
| Magerwiese | 27 | 0.23 km² | 22.2% |
| Kantonsstrasse | 24 | 0.10 km² | 4.2% |
| Wohn- und Gewerbezone 2 | 21 | 0.03 km² | 66.7% |
| Fromentalwiese | 14 | 0.16 km² | 21.4% |
| Gewässer | 10 | 0.02 km² | 0.0% |
| Zone für öffentliche Bauten und Anlagen | 10 | 0.03 km² | 70.0% |
| Wohn- und Gewerbezone 3 | 9 | 0.01 km² | 55.6% |
| Gewerbezone | 8 | 0.06 km² | 50.0% |
| Other zones (4 labels) | 16 | 0.06 km² | 43.8% |
Zone names are the municipal designations. A canton lists each wording separately.
Building stock
The building register lists 835 buildings with 678 dwellings here; 303 of them are single-family houses.
- Buildings
- 835
- Dwellings
- 678
- Single-family houses
- 303
- Building volume
- 910’313 m³
Buildings by category
Construction periods
Built parcels by construction period of their newest building
Maps and geodata for Wittnau
geopool works as a GIS and geoportal for Wittnau. 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.