VISIT
OPENLY
Visit the largest "hemp house" in Europe in Widnau SG.
See, touch, marvel at, and learn about sustainable building at
.
Over 1,700 trade visitors since 2024
5 Büchelstrasse, CH-9443 Widnau
10 minutes from Lake Constance, direct train from Zurich Central Station (Heerbrugg)
Construction Site Days Phase 2
Fri, Oct. 9, 2026, 10 a.m.–12 p.m.
Wed, Oct. 14, 2026, 10 a.m.–12 p.m.
Tue, Oct. 20, 2026, 3:00–5:00 p.m.
Thu, Oct. 29, 2026, 4:00–6:00 p.m.
Tour itinerary:
1-hour tour of the construction site during the framing of the wooden structure for Phase 2, followed by a 1-hour tour of Openly Valley Widnau I, as well as a discussion and exchange at the Openly office (right next door).
Address: Büchelstrasse 5, 9443 Widnau
Parking: In front of the building or in the underground parking garage; spaces 4, 10, 11, 21, D
Registration is requested.
Free Valley Widnau guided tours every last Thursday of the month
Thu, Oct. 29, 2026, 4:00–6:00 p.m.
(includes a tour of the Phase 2 construction site)
Thu, Nov. 26, 2026, 5:30 p.m.
Tour duration: approx. 60 minutes plus discussion & Q&A
Address: Büchelstrasse 5, 9443 Widnau
Parking: In front of the building or in the underground parking garage, spaces 10 & 11
Registration is requested.
Dates for individual tours on request.
OPENLY day training: in the lab in Widnau, SG, we share our knowledge of bionic construction for the greatest possible climate impact
Meeting room: hold your board meeting or strategy workshop in Openly Valley Widnau
Spend the night in our Green Studio, the business accommodation in Europe's largest hemp house
OPENLY on your ears: In an unedited conversation with Peter Richner (Deputy Head of the Swiss Federal Laboratories for Materials Science and Technology), Andy Keel talks about avoiding CO2 in the construction process, Swiss SIA standards, grandchildren's suitability and what the floppy disk has to do with carbon capturing.
🎙️Spotify: The CO2-neutral house