Local roots, international presence. Sharing our vision with you. 7 Studios in Austria, Switzerland, Germany and France.
We are an internationally operating architectural practice with roots in Vorarlberg. We focus our architecture on the respectful use of resources, the development of socially balanced spaces and the appreciation of the cultural and architectural context. Since our founding, we have played a pioneering role in modern timber construction. Today, the office is managed by Helmut Dietrich, Much Untertr
ifaller, Dominik Philipp and Patrick Stremler and employs an international team of over 120 people at locations in Austria (Bregenz and Vienna), Switzerland (St. Gallen), France (Paris) and Germany (Munich). The entire spectrum ranging from large-scale buildings and urban structures through alterations of existing buildings to single-family homes defies specialization, constantly challenges and inspires creativity and an inquiring mind. Our international projects we often realise together with local offices and regional partners. A decisive factor in all our work is the resource-saving and appropriate use of materials, with a particular commitment to contemporary timber construction. We are well known for our expertise in design and construction and maintain this knowhow through relationships of dialogue and trust with clients, craftsmen and engineers. In course of lectures and in teaching we are glad to share our knowledge. Our innovative and sustainable buildings received numerous awards, including the Wiener Wohnbaupreis 2019 / Vienna Housing Award (Residential complex In der Wiesen Süd, Vienna), the Prix National de la Construction Bois 2017 (Sports Center Alice Milliat Lyon) and the State Award for Architecture and Sustainability 2017 (Elementary School Edlach, Dornbirn).
08/11/2025
Today is ‘Tag der Umbaukultur’ – redesigning our built environment is not just about creating something new, but also about consciously rethinking what already exists.
By prioritising adaptive reuse, we conserve the CO2 that has already been built in and preserve the cultural continuity of a place.
The renovation of the Hotel Hirschengründe is just one example of this approach, where careful material selection and participatory design allow the space to remain active and evolve with its community.
Image Albrecht I. Schnabel
baukultur
06/11/2025
The construction sector accounts for nearly 40% of global CO₂ emissions and over 50% of waste. Regenerative architecture offers a direct path to mitigate this impact by prioritizing renewable, circular, and locally sourced materials like wood. This approach significantly reduces embodied carbon and conserves resources.
In our view, however, regenerative architecture offers pioneering solutions precisely because it combines traditional construction methods with modern technologies.
A recent example, Wood Art, illustrate the tangible benefits of this approach by using solid wood as a natural carbon sink.
At the College in Lamballe, France, prefabricated timber modules help minimize construction waste.
The REKA Holiday Village in Urnäsch, Switzerland, was built to the Minergie-ECO standard with locally sourced wood, reducing transport emissions.
With a roof area of 22,000 m² and built with 5200 m³ of construction timber, the TUM School of Medicine and Health in Munich is one of Europe’s biggest timber structures. Its distinguishing feature is a 150 metres long roof, which consists of 40 prefabricated hollow box girders
These strategies showcase a commitment to building in a way that serves both people and the planet.
Explore our dossier on regenerative building. link in bio
Images: Florian Spring, Aldo Amoretti, Luc Boegly, Bruno Klomfar, Aldo Amoretti, David Matthiessen
06/11/2025
The construction sector accounts for nearly 40% of global CO₂ emissions and over 50% of waste. Regenerative architecture offers a direct path to mitigate this impact by prioritizing renewable, circular, and locally sourced materials like wood. This approach significantly reduces embodied carbon and conserves resources.
In our view, however, regenerative architecture offers pioneering solutions precisely because it combines traditional construction methods with modern technologies.
A recent example, Wood Art, illustrate the tangible benefits of this approach by using solid wood as a natural carbon sink.
At the College in Lamballe, France, prefabricated timber modules help minimize construction waste.
The REKA Holiday Village in Urnäsch, Switzerland, was built to the Minergie-ECO standard with locally sourced wood, reducing transport emissions.
With a roof area of 22,000 m² and built with 5200 m³ of construction timber, the TUM School of Medicine and Health in Munich is one of Europe’s biggest timber structures. Its distinguishing feature is a 150 metres long roof, which consists of 40 prefabricated hollow box girders
These strategies showcase a commitment to building in a way that serves both people and the planet.
Explore our dossier on regenerative building.
Link in bio
Images: Florian Spring, Aldo Amoretti, Luc Boegly, Bruno Klomfar, David Matthiessen, Aldo Amoretti
22/10/2025
We are honoured to announce the nomination of our project, the Waldorf School Mauer in Vienna, for the European Union Prize for Contemporary Architecture – 2026.
The Waldorf School Vienna-Mauer was expanded with a harmonious addition built using sustainable wood and clay construction methods, creating a healthy, chemical-free learning environment. Generous window fronts and pergolas promote transparency and communication, while the resource-saving use of natural materials architecturally implements the concept of holistic development. The project was nominated for this combination of tradition, sustainability, and innovation.
The presented every two years by the European Commission and the Fundació Mies van der Rohe, is one of the most prestigious awards for contemporary architecture in Europe. It recognizes works that demonstrate conceptual, social, cultural, and technical excellence. The nomination acknowledges the relevance of the Waldorf School Mauer project in the European architectural discourse.
Images: Aldo Amoretti, Kurt Hoerbst
Congratulation to the entire Team
Franca Bierich, Harald Eder, Tobias Indermühle (Project Lead), Andreas Laimer, Michael Porath, Gregor Ribarich, Julian Roiser, Mia Schury, Jakob Straub, Fabio Verber
Architecture: Dietrich Untertrifaller und Andreas Breuss
Partners
Statics concrete: Gerhard Gschwandtl ZT, Vienna
Statics timber: .kurtpock, Klagenfurt
Building services, electricis: Immo-Objekttechnik, Vienna
Building physics: DR. PFEILER GmbH, Ingenieurgesellschaft, Graz
Fire protection: Hoyer, Vienna
Landscape: , Vienna
General contractor: , Bad Schönau
14/10/2025
Le Palais de la Musique et des Congrès de Strasbourg fête ses 50 ans !
Les festivités débuteront le vendredi 17 octobre 2025 avec un programme exclusif.
« Vous souhaitez découvrir avec nous le concept architectural du projet de rénovation et d’extension du PMC ? Nous vous emmenons faire un petit voyage architectural dans son passé récent. » – déclare Much Untertrifaller, qui participera à la cérémonie officielle en tant qu’invité d’honneur et qui partagera des informations sur le projet avec .
Leur conférence pour le grand public aura lieu le samedi 18 octobre à 15h00 en salle Curie.
Nous sommes honoré·e·s d’avoir contribué, avec .eu (aujourd’hui rey de crécy et Lucquet Architectes), à la préservation de ce bâtiment remarquable, notamment grâce à la récente rénovation de la salle principale et du foyer, qui a conféré à ce célèbre monument une clarté contemporaine et une cohérence spatiale.
Lessons in Bamboo: Lycée Tani Malandi, Mayotte
On the island of Mayotte, the Lycée Tani Malandi is an example of how architecture can integrate local materials and culture. In a joint effort with Austrian and French architects and local partners in Mayotte, we designed a campus for 2,000 students with classrooms, sports facilities, a library, a dining hall, and an on-site dormitory.
Clay, wood, bamboo, basalt—these ubiquitous natural materials used in this project emphasize the close relationship between the school and its surroundings. Bamboo façades are reminiscent of the woven fences of original Mahoran houses. Overhanging roofs and long pergolas in front of the classrooms are inspired by the verandas of traditional homes. The lime plaster on the gable of the gymnasium and the school refers to the name of the high school: „Tani Malandi“, which is the name of the white clay from the surrounding caves that is used for make-up at weddings or ritual ceremonies.
Learn more about the project link in bio
Visualisation: .wang
Partners
Architecture: Dietrich Untertrifaller with and
Statics, building services, electrics: Ingerop Conseil et Ingenierie
Building physics: Le Sommer Environnement, Paris
Landscape: Piton Saint-Leu, Réunion
Acoustics: Aida Acoustique, Paris
OPC: Oteis Mayotte, Mamoudzou
BIM Manager: Atelier Juno
08/10/2025
The first of three timber construction phases for OMICRON‘s building—soon to be home to b2 Electronics—is finished. Thanks to for the fast ex*****on of the timber structure, GBD for the efficient timeline planning and for the construction work. With pre-fabricated timber elements, combining facade and exterior columns in one we are one step closer to realizing an exemplary high-tech and resource efficient project suited specifically to the needs of a fast-growing technology company.
Team:
Christopher Braun, Jana Wörn, Jill Mara-Bürk, Alexander Schidlbauer, Peter Nussbaumer
• Welcome to the TUM Campus in Munich!
Wood instead of concrete. Let there be light instead of monuments! Exchange isolation for connection!
The new campus of the TUM School of Medicine and Health in the Olympic Park is an inspiring example of architecture taking responsibility for the environment, existing buildings, people, and coexistence.
This project is a showcase of our approach at DTFLR:
Architecture that doesn’t want to be loud – it speaks so clearly.
Clever and useful – context-aware. Resource-efficient. Human.
it’s all about
– an inspiring concept
– an absolute must-see
photos by Aldo Amoretti, Marcus Buck, David Matthiessen
01/09/2025
– The timber roof of the TUM Campus in Munich’s Olympic Park
With a roof area of 22,000 m² and built with 5200 m³ of construction timber, the TUM Campus is one of Europe’s biggest timber structures. Its trademark is the 150 metres wide roof with a cantilever of nearly 19 metres and consisting of 40 prefabricated hollow box girders.
photo credits: Aldo Amoretti, DTFLR
29/08/2025
“We don’t need to fail in the face of the climate crisis.”
• The NEXUS office building in Baar shows how the future is being built.
• Wood and recycled concrete are regional materials that close cycles.
• Upgradeable spaces that adapt to their users.
• Natural and inspiring: wood, concrete and light for healthy working.
NEXUS is a statement: architecture that meets needs and acts sustainably.
Visualisation: Nightnurse Images AG
28/08/2025
Three Perspectives, One Vision
What happens when architects, designers, and consultants come together in Frankfurt?
The future of work takes shape.
Dietrich Untertrifaller, Vitra, and M.O.O.CON are joining forces to explore how to create workspaces that truly serve people and companies in our upcoming event on October 9th at the Vitra Workspace Frankfurt.
It’s about more than shared desks or open floors. It’s about understanding how architecture creates space for authentic human interaction and productive collaboration.
The solutions emerge when different expertise meets around a shared purpose. Our speakers Dominik Philipp (DTFLR), Katrin Mercsanits (M.O.O.CON), Ralf Schmitz (Vitra), and Jonathan Wieberneit (WÖHR+BAUER) will share their insights on creating work environments that prioritize collaboration, flexibility, and human connection.
We don’t want to fail because of the climate crisis.
Sustainability doesn’t begin with sacrifice; it begins with understanding our needs. By designing buildings to be flexible and adaptable, we create spaces that evolve with us and never become outdated.
At Dietrich Untertrifaller, we specialise in updatable architecture that is modular, digitally networked and recyclable. After all, the built environment is our material warehouse of tomorrow.
Read the full interview with Dominik Philipp: Link in Bio
photo credits: DTFLR, Marcus Buck
words by Anja Koller
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Our Story
The architecture of Dietrich | Untertrifaller is always carefully and at the same time confidently developed from its respective context – restrained in style with spatial sophistication and demonstrating a finely nuanced materiality. Our office, founded in 1994 by Helmut Dietrich and Much Untertrifaller, is one of the iconic agencies of the renowned School of Vorarlberg. As Dominique Gauzin-Müller points out in her book Ecological Architecture of Vorarlberg, »Vorarlberg is currently the most convincing example of putting into practice an eco-responsible development on a European level. Hostile to the cult of image, it advocates pragmatism: think practically, act economically, and move step by step from small to large scale. Concerned about saving material and energy, the approach is a synthesis between what is aesthetically desirable, constructively reasonable and socially justifiable.«
The entire spectrum ranging from single-family homes through alterations of existing buildings to large-scale buildings and urban structures defies specialization, constantly challenges and inspires creativity and an inquiring mind. Flashy architecture in the formal sense is not our style, but rather exciting architecture is, which is always developed from the relationship to the respective place and its environment and the required program. A decisive factor in all our work is the resource-saving and appropriate use of materials and structures, with a particular interest in and commitment to contemporary timber construction. We are well known for our expertise in timber design and construction and maintain this know-how through relationships of dialogue and trust with clients, craftsmen and engineers.
The office is lead by Helmut Dietrich, Much Untertrifaller, Dominik Philipp and Patrick Stremler and employs today an international team of 90 architects working in Austria (Bregenz and Vienna), Switzerland (St Gallen), France (Paris) and Germany (Munich). The international Projects are often developed with the support of local agencies and regional partners. In the past few years we have realized numerous projects in Austria, France, Germany and Switzerland and we will further expand our international presence.
Our innovative and sustainable buildings received numerous awards, including the Prix National de la Construction Bois 2017 (Sports center Alice Milliat Lyon), the State Award for Architecture and Sustainability 2017 (Elementary School Edlach, Dornbirn) and 2006 (School & Hall, Klaus), the Prix d’Architecture de Bretagne 2016 (School Jean-Monnet Broons), the LEED Platinum (Headquarters i+R Gruppe Lauterach), the Austrian Building Award (ETH Sports Center Zürich) or the International Architecture Award (Festspielhaus Bregenz).
http://de.wikipedia.org/wiki/Dietrich/Untertrifaller_Architekten
