In brief
In Wangen bei Olten (canton of Solothurn), the Federal Register of Buildings and Dwellings lists 28 buildings that are planned or under construction: 4 projected, 13 authorised and 11 under construction. Together they include 85 planned dwellings. As of 11.10.2026.
Buildings planned and under construction
All projects, under construction first, then by number of dwellings.
| Address | Status | Dwellings |
|---|---|---|
| Mittelgäustrasse 138 | under construction | 17 |
| Mittelgäustrasse 132 | under construction | 17 |
| Mittelgäustrasse 134 | under construction | 11 |
| Mittelgäustrasse 136 | under construction | 11 |
| Haldenstrasse 2 | under construction | 1 |
| Treppackerweg 13 | under construction | 1 |
| Treppackerweg 15 | under construction | 1 |
| Altmatt 8 | under construction | 1 |
| In der Ey 39a | under construction | – |
| Mittelgäustrasse 140 | under construction | – |
| Mittelgäustrasse 142 | under construction | – |
| Dorfstrasse 87 | authorised | 7 |
| Dorfstrasse 89 | authorised | 7 |
| Holengrabenweg 21a, Holengrabenweg 21b | authorised | 2 |
| Holengrabenweg 19a | authorised | 1 |
| Holengrabenweg 19b | authorised | 1 |
| Holengrabenweg 19c | authorised | 1 |
| Holengrabenweg 19e | authorised | 1 |
| Holengrabenweg 19d | authorised | – |
| Hinterbüelstrasse 39 | authorised | – |
| Allmendstrasse 55b | authorised | – |
| Gartenstrasse 4a | authorised | – |
| Dorfstrasse 85 | authorised | – |
| Gheidstrasse 24a | authorised | – |
| Wegacker 17 | projected | 5 |
| Holengrabenweg 19f | projected | – |
| Obere Dünnernstrasse 26 | projected | – |
| Wegacker 19 | projected | – |
Frequently asked questions about Wangen bei Olten
How many new-build projects are there in Wangen bei Olten?
In Wangen bei Olten (canton of Solothurn), the Federal Register of Buildings and Dwellings lists 28 buildings that are planned or under construction: 4 projected, 13 authorised and 11 under construction. Together they include 85 planned dwellings. As of 11.10.2026.
Where can I find building permit applications in Wangen bei Olten?
Building permit applications from Wangen bei Olten are published in the official gazette of the canton of Solothurn or by the municipality. Vorbau doesn’t analyse this canton’s building permit applications yet, but you can see the planned buildings from the building register on the map.
How do I find out about new building projects in Wangen bei Olten?
With an alert on vorbau.ch: draw an area around Wangen bei Olten on the map and you’ll get an email as soon as a building there is newly registered, authorised, started or completed. One alert is free.
Other municipalities in the canton of Solothurn
Sources: Federal Statistical Office, Federal Register of Buildings and Dwellings (RBD); cantonal official gazettes via amtsblattportal.ch; SOGC. Planned buildings may change or not go ahead.