Birrwil
Municipality in the canton of Aargau · FSO no. 4132
Parcel data from Nov 2026, statistics computed on 29 Oct 2026.
Open map at the Birrwil centerThe parcel data lists 1’282 parcels in Birrwil, covering 5.5 km². 33.5% of them have at least one registered building. The median parcel measures 1’320 m².
Key figures
- Parcels
- 1’282
- 0.4% of the canton
- Total area
- 5.5 km²
- 0.4% of the canton
- Median area
- 1’320 m²
- Canton: 861 m²
- Switzerland: 881 m²
- Built share
- 33.5%
- Canton: 55.2%
- Switzerland: 51%
- Median year built
- 1974
- Canton: 1986
- Switzerland: 1975
About Birrwil
Birrwil ranks 99th of 196 municipalities in the canton of Aargau by number of parcels and holds 0.4% of the canton's parcels on 0.4% of its area. The median parcel in Birrwil measures 1’320 m², larger than the canton median of 861 m². Birrwil is less built-up than the canton as a whole: 33.5% of its parcels have a building, against 55.2% across the canton.
The zones with the most parcels are Landwirtschaftszone (32.8%), Perimeter des Hallwilersee-Schutzdekretes (18.6%) and Wald (15.8%). In total, Birrwil uses 20 zone designations.
According to the building register, Birrwil has 714 buildings with 800 dwellings, 1.1 dwellings per building on average. Most residential buildings are single-family houses (63.8%). Non-residential buildings account for 44.5% of all buildings.
Built parcels most often have their newest building from 1961 to 1980 (21.6% of them), and 23.7% have one from 2001 or later. The median year built, 1974, is earlier than in the canton as a whole (1986).
Built and unbuilt parcels
Built: 430 (33.5%)
Unbuilt: 852 (66.5%)
Parcels by zone
| Zone | Parcels | Area | Built |
|---|---|---|---|
| Landwirtschaftszone | 421 | 1.57 km² | 17.3% |
| Perimeter des Hallwilersee-Schutzdekretes | 238 | 0.54 km² | 18.1% |
| Wald | 203 | 0.75 km² | 1.0% |
| Ein- und Zweifamilienhauszone | 151 | 0.15 km² | 82.1% |
| Wohn- und Gewerbezone 2 Geschosse | 70 | 0.10 km² | 80.0% |
| Wohnzone 2 Geschosse | 67 | 0.09 km² | 77.6% |
| Wohnzone 3 Geschosse | 42 | 0.04 km² | 76.2% |
| Kernzone | 18 | 0.01 km² | 77.8% |
| Dorfzone | 15 | 0.02 km² | 80.0% |
| Kantonsstrasse | 12 | 0.04 km² | 8.3% |
| Magere Fettwiese | 10 | 0.03 km² | 20.0% |
| Spezialzone Färbi | 10 | 0.02 km² | 60.0% |
| Other zones (8 labels) | 25 | 2.18 km² | 52.0% |
Zone names are the municipal designations. A canton lists each wording separately.
Building stock
The building register lists 714 buildings with 800 dwellings here; 234 of them are single-family houses.
- Buildings
- 714
- Dwellings
- 800
- Single-family houses
- 234
- Building volume
- 823’014 m³
Buildings by category
Construction periods
Built parcels by construction period of their newest building
Maps and geodata for Birrwil
geopool works as a GIS and geoportal for Birrwil. 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.