In brief
In Lengnau (AG) (canton of Aargau), the Federal Register of Buildings and Dwellings lists 33 buildings that are planned or under construction: 9 projected, 16 authorised and 8 under construction. Together they include 127 planned dwellings. As of 11.10.2026.
Buildings planned and under construction
All projects, under construction first, then by number of dwellings.
Frequently asked questions about Lengnau (AG)
How many new-build projects are there in Lengnau (AG)?
In Lengnau (AG) (canton of Aargau), the Federal Register of Buildings and Dwellings lists 33 buildings that are planned or under construction: 9 projected, 16 authorised and 8 under construction. Together they include 127 planned dwellings. As of 11.10.2026.
Where can I find building permit applications in Lengnau (AG)?
Building permit applications from Lengnau (AG) are published in the official gazette of the canton of Aargau 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 Lengnau (AG)?
With an alert on vorbau.ch: draw an area around Lengnau (AG) 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 Aargau
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.