In brief
In Trélex (canton of Vaud), the Federal Register of Buildings and Dwellings lists 25 buildings that are planned or under construction: 1 projected, 21 authorised and 3 under construction. Together they include 20 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 |
|---|---|---|
| Chemin du Perreret 1a, Chemin du Perreret 1b, Chemin du Perreret 1c | under construction | 4 |
| Chemin du Perreret 1b | under construction | 1 |
| Chemin du Perreret 1a | under construction | 1 |
| Chemin du Perreret 9 | authorised | 1 |
| Chemin de la Gachette 16 | authorised | 1 |
| Chemin de la Gachette 8 | authorised | 1 |
| Chemin de la Gachette 14 | authorised | 1 |
| Chemin de la Gachette 10b | authorised | 1 |
| Chemin de la Gachette 6 | authorised | 1 |
| Route de Saint-Cergue 27f | authorised | 1 |
| Route de Saint-Cergue 27d | authorised | 1 |
| Route de Saint-Cergue 27c | authorised | 1 |
| Route de Saint-Cergue 27b | authorised | 1 |
| Route de Saint-Cergue 27a | authorised | 1 |
| Chemin du Perreret 2a | authorised | 1 |
| L'Acquedaine 4 | authorised | 1 |
| Chemin du Pré-Vert 4, Chemin du Pré-Vert 2 | authorised | 1 |
| Chemin de la Gachette | authorised | – |
| Chemin de la Gachette 12a | authorised | – |
| Chemin de la Gachette 12b | authorised | – |
| Chemin de la Gachette 10a | authorised | – |
| Route de Saint-Cergue 27e | authorised | – |
| Chemin du Perreret | authorised | – |
| Chemin du Marais Bresson 13 | authorised | – |
| Chemin du Cerisier 1 | projected | – |
Frequently asked questions about Trélex
How many new-build projects are there in Trélex?
In Trélex (canton of Vaud), the Federal Register of Buildings and Dwellings lists 25 buildings that are planned or under construction: 1 projected, 21 authorised and 3 under construction. Together they include 20 planned dwellings. As of 11.10.2026.
Where can I find building permit applications in Trélex?
Building permit applications from Trélex are published in the official gazette of the canton of Vaud 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 Trélex?
With an alert on vorbau.ch: draw an area around Trélex 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 Vaud
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.