ERDEN Werkhalle

New Construction: ERDEN Factory Workshop Lehm Ton Erde

Since May 2019, the "Lehm-Ton-Erde" Baukunst GmbH has been building a new workshop and integrated planning office as an additional production facility for the production of rammed earth products in the municipality of Schlins in Vorarlberg.

The operating building has a total dimension of about 67 meter by 24 (20) meter and a constructed area about 1537m². The open-plan workshop is founded on concrete strip foundations and the main construction of the hall is a combined hybrid construction in solid wood construction and rammed earth. The rammed clay walls of the workshop are produced on site and the structure is designed as a structural timber construction, as a combined laminated beam and truss construction.
The building technology of the hall unites several clay building techniques and timber construction methods under one roof, in several components such as facades and interior fittings. Overall, the construction represents a significant innovation for earth construction due to the dimensioning and, above all, the mechanical stress of the rammed earth material.

upscaling earth

UPSCALING EARTH - Material, Process, Catalyst
Anna Heringer, Lindsay Blair Howe, Martin Rauch

Earth building is not only one of the oldest, but also one of the most modern construction methods of our time. What economic, environmental, and social conditions are necessary for an upscaling of earth to occur?

In the future, cement, the most important component of concrete, will – as well as other finite resources – become less viable to produce and significantly more expensive. Considering appropriate alternatives for building materials is becoming imperative.

This book presents a wide scope of built and unbuilt projects as well as strategies that can be implemented to edify processes of building, adapting the use of earth to each unique culture and context. Using impressive examples, the authors demonstrate groundbreaking technological innovations that highlight the advantages of this material: from its worldwide availability to the possibility of comprehensive recycling, from climate-neutral production to socially just implementation, including a focus on emerging economies. This book reveals the incredible potentials of earthen architecture – for people and for the entire planet.

gta Verlag, ETH Zürich
16 x 21 cm, 152 pages and 114 illustr., Color Print, Soft Cover
ISBN 978-3-85676-393-0

Harvard Workshop 2019

Harvard Workshop

From 11th to 19th June 2019 a workshop of Anna Heringer and Martin Rauch took place at the studio of Lehm Ton Erde in Schlins.

Twelve students from Harvard University in Boston (USA) participated. These days, various clay constructions were taught, tested, and used 1:1. The aim of the workshop was to learn about the use of different loam constructions and to reflect the establishment of a resource-efficient construction industry. As a prototype a rammed earth wall, which serves as a sculpture, was erected. Several details such as ground connections, niches, ceiling connections could be tested. During Harvard´s visit, furthermore the Vorarlberg building culture was in the foreground, which they greatly appreciated.



Alphabet of Life - Nature's Learning Lab
Exhibition at Werkraum Bregenzerwald

23 June to 06 October 2018 in Andelsbuch

What design principles might we learn from nature that can be applied to
designing, producing and managing life in a resource-efficient and sustainable
way? The exhibition tells the story of a tree’s eco-system and thereby
demonstrates nature’s strategies and patterns that have been envolving for
more than 3.8 thousand million years. The audience is introduced to the
framework and the practice of biomimicry by learning from ordinary and
innovative applications in various crafts and design professions.
This transdisciplinary exhibition project is underpinned by extensive
collaborative research and oriented toward educating all stakeholders. Thus,
the exhibition brings together science, crafts and artistic production in an
inspiring learning lab for the whole family.

The exhibition shows a rammed earth socel by Lehm Ton Erde for the architectural model of the Werkraumhaus.

Further information

Markus Bühler-Rasom für die Ricola AG

EXHIBITION "L'art du chantier"
at the Cité de l'architecture et patrimoine Paris

Participation at the exhibition of Martin Rauch

09 November 2018 to 11 March 2019

Further Infos


Exhibition "Mit Erde gebaut I unstabilisiert, vorgefertigt, tragend"
VAI Dornbirn, 07.03. - 19.05.2018

Opening, 06.03.2018, 7 pm

Joint-exhibition with the 40 finalists of the TERRA Award

More information at VAI


tri 2018 - Einfach! Smart!
Conference, 05.-07.04., Bregenz

Lecture by Martin Rauch Thursday, 05.04.

Early booking discount until 05.03.


Exhibition "Martin Rauch – Formovat zemi / Refined Earth"
16.06. – 13.08.2017, České Budějovice, Czech Republic


Vernissage 15.06.2017, 6pm

Curators: Michal Škoda, Martin Rauch, Clemens Quirin

Graphic concept: Sebastian Rauch

> further information


Construction site Alnatura Campus

Since summer 2016 our company Erden Lehmbau GmbH is working on site of the "Alnatura Arbeitswelt"

further information and photos


Exhibition "Pisé - tradition and potential"
Archizoom EPFL, 20. March - 27. May 2017, Lausanne

Lecture by Martin Rauch 03. April 2017, 18:00

Further information


Refined Earth - Construction & Design with Rammed Earth
New publication by Martin Rauch

Available from end of November 2015 in German and English from any well-stocked bookstore, at or directly at Lehm Ton Erde

Edition Detail, München
160 pages
Format 22 x 28,4 cm
ISBN 978-3-95553-273-4

Terres de Paris

Terres de Paris
Conference and exhibition

Wednesday 12th of October, 7 pm, Pavillon de l'Arsenal de Paris

Romain Anger (CRATerre), Paul-Emmanuel Loiret & Serge Joly (Agence Loiret&Joly), Martin Rauch (Lehm Ton Erde)

Conference and exhibition at the Pavillon de l'Arsenal de Paris with the contribution of Lehm Ton Erde (Rach House and Ricola Kräuterzentrum)

Heringer/Rauch/Lepik at the Architecture Biennale Venice 2016

Architecture Biennale 2016, Venice
Martin Rauch, together with Anna Heringer and Andres Lepik, is invited to the Architecture Biennale 2016 "Reporting from the Front"

Martin Rauch, together with Anna Heringer and Andres Lepik, is invited to the Architecture Biennale 2016 "Reporting from the Front"

Ausstellungseröffnung Gebaute Erde

Exhibition: Gebaute Erde
Ziegelei-Museum Cham, Switzerland

Exhibition about building with rammed earth and projects of the last 15 years.

22.05. - 23.10.2016

Ziegelei-Museum Cham, Switzerland

Curator: Clemens Quirin

Design: Atelier Gassner, Reinhard Gassner und Marcella Merholz

Coordination at the museum: Judith Matter Bütler

Neue Grablege der Bischöfe zu Rottenburg

Start of new project: Sülchenkirche Rottenburg, Germany

Lehm Ton Erde has just opened a new building site in Germany. The new burial place of the bishops of Rottenburg are made of rammed earth.

Architecture: Cukrowicz Nachbaur Architekten

foto 13 gross copy 2

Bavarian State Award
for special high creative and technical performances in the craft trade sector

The firm Lehm Ton Erde Baukunst GmbH established by Martin Rauch was recently pleased to celebrate a special award. The Bavarian State Prise was awarded in the course of the Internationale Handwerksmesse in Munich. The jury awarded the special prize to LTE, with its 20 Years' experience, for its exemplary and innovative work with rammed earth techniques.
_translated from Vorarlbergernachrichten


International Summer School
on modern earthen architecture and bamboo construction

When: 14.-28.07.2014
Where: AgrarBildungsZentrum Salzkammergut
, Altmünster, Austria
Deadline: Monday, 24.03.2014
Final selection: Monday, 31.03.2014

BASEhabitat wants to promote earth and bamboo as excellent materials for sustainable constructions. Earthen and bamboo architecture has not only a long tradition in human settlement, but also offers many advantages for contemporary sustainable architecture.



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Marta and Martin Rauch in Zurich
Schweizer Baumuster-Centrale

When: Thursday, 04.07.2013, from 6 to 8 p.m.
Where: Schweizer Baumuster-Cenrale Zürich, Weberstraße 4, 8004 Zürich


Lecture and talk with apéritif (German language)
Participation is free of charge, Registration until 3rd July at

Flyer (German language)


Conference in Hamburg · Martin Rauch, Francis Kéré, Armando Ruinelli
Could Slow Architecture lead to new synergies between Urban and Rural?

When: Thursday, 06.06.2013, 19 o'clock
Where: Hamburger Kunsthalle Galerie der Gegenwart, Glockengießerwall, 20095 Hamburg

 More (German language)...

flyer conf herringer - rauch-1 klein

Anna Heringer and Martin Rauch · Festival Grains d’Isère
Material to be explored

When: Thursday, 30.05.2013, at 6 p.m.
Where: Théâtre du Vellein, Avenue du Drieve, 38090 Villefontaine, France


"As part of the 2013 Grains d'Isère festival, two German pioneering figures will come and share
their vision of contemporary earthen architecture. These long-time friends are driven by the same
social commitment, the same respect for aboriginal cultures and the same technical rigor"

Flyer Conference EN/FR

Programme Grains d'Isère FR


Conference · Anna Heringer and Martin Rauch in Salzburg
A house for children in Cuzco, Peru

When Thursday, 16.05.2013, 17.30
Where Chamber of Architects and Consulting Engineers for Upper Austria and Salzburg, Gebirgsjärigerplatz 10, 5020 Salzburg


Experts in Earth construction at the opening ceremony for the Exhibition of the Architecture Competition: "Cuzco - Students design a house for children in Peru"
Chamber of Architects and Consulting Engineers for Upper Austria and Salzburg

More... (German Language)

Invitation to the event


Conference · Bavarian Architect Chamber Munich

Earth: Innovative building material
Martin Rauch at the House of Architcture

When Tuesday, 16.04.2013, from 6 to 9 p.m.
Where: Bavarian Architect Chamber, HdA, Waisenhausstr. 4, 80637 München

Bavarian Architect Chamber (In German language)

Flyer (In German language)


Conference · Galerie Luciano Fasciati

Martin Rauch:
Landscape deisgn, by its very nature
(in German language)

When Wednesday, 13.03.2013, 8 o'clock p.m.
Where Galerie Luciano Fasciati, Süsswinkelgasse 25, Postfach 320, CH-7002 Chur

In collaboration with Ortsgruppe Graubünden des Schweizerischen Werkbundes (SWB).

spatenstich 7

Ricola Herb Center

Official groundbreaking ceremony
Laufen (Basel), 23rd January 2013

Have a look at the project!

Press Release:
Ricola Herb Center (EN)
Maison des Plantes Ricola (FR)

Press Publications:
Schweizer Radio und Fernsehen (DE)
Swiss-architects (DE)
Hoch Parterre (DE)

ausschnitt ostfassade.jpeg

New earth building for environmental education

Inauguration of the new building at the botanic garden Merian Gärten Brüglingen in Basel.
Friday 8th February 2013

Have a look at the project!

(Picture: Tom Baumann)


Creativity Forum 2013
Bridging the Gap between Imagination and Realization

Martin Rauch:
Rammed Earth - a rediscovered sustainable construction technique

Tuesday, 29th January 2013
Plaza, Dhahran, Saudi Arabia
Hosted by: The King Abdulaziz Center for World Culture

To the Creativity Forum 2013 Website


Energy in Buildings 2012

Martin Rauch:
Energy Efficiency of Rammed Earth

International Conference - ASHRAE

Saturday, 13th October 2012, Athens
Curated by Hellenic Chapter


aramco iv_plaza_final


Martin Rauch: Rammed Earth Industrialised
6th International Conference on Building with Earth

Friday, 05th October 2012 from 9.30 a.m.
Kulturzentrum mon ami, Weimer, Germany

Rendering of Cultural Centre, Snohetta Architectural Practice


reddot logo copy

Reddot Design Award
Best of the Best 2012

Lehm Ton Erde

Marta Rauch-Debevec and Sebastian Rauch of „KARAK gebrannte Zeichen" are especially pleased by the internationally recognised Reddot Design Award „best of the best" 2012, a prize they were awarded on Monday  2nd July 2012 in Essen, for their Kuqua series of tiles.

The work was assessed by a top-class panel of experts, that stated: "The KuQua series of tiles successfully combines artisanal tradition with design. Their three dimensional appearance creates a sense of depth and leads to attractive visual effects. They offer architects and planners a wide range of new possibilities for using tiles."



Holcim Awards Bronze 2011 Africa Middle East
School of Sustainable Development, Marrakesh, Morocco

Martin Rauch won together with Anna Heringer, Nägele-Waibel Architekten and Salima Naji the competition for a school of sustainable development in Marrakesh, Morocco. The project was awarded with the Holcim Awards Bronze 2011 Africa Middle East and is participant of the Holcim Global Awards 2011.

to the project



A Model of Advanced Clay Architecture
Roger Boltshauser, Martin Rauch

Editor Otto Kapfinger, Axel Simon
Birkhäuser Verlag Basel 2010
192 pages, 168 x 224 mm, Color Print, Hard Cover
ISBN 978-3-0346-0109-2 Deutsch/Englisch


Lecture at Harvard`s Graduate School of Design

Watch the video of the lecture!

A Talk with Austrian Artist Martin Rauch and Anna Heringer, Loeb Fellow, moderated by Andres Lepik
Thursday, March 22, Piper Auditorium, 6:30 pm
Moderator: Andres Lepik
Free and Open to the Public


TV Report TSF-Kultur
Kulturplatz - Leben in Lehm (Live in the Earth)

Report of the Swiss television about the recondite comeback of an archaic building material.  Kulturplatz 15.12.2010
(only in German)

Watch the TV Report video!

Lehm Ton Erde

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