the art of
interior design

Clay plaster workshop
14-17 Nov 2019

When we are creative, we create something. You can clot clay on the wall. But when is something sacred to you? When all the love has flowed into your own doing and you discover the beauty of this devotion. We have the honor to welcome two great clay artists for this workshop, Isabella Breda and Kenji Matsuki, who in every moment work in this devotion. Two masters of clay art who, in addition to technology, above all convey their love for the earth in every moment.

For whom is the workshop suitable?

Men, women, lay people, experts, architects, engineers, craftsmen, house builders, artists, nature lovers and generally for all people who are interested in circulatory systems and are interested in (construction) ecology. Max. 20 participants


Content of the workshop

A little theory and a lot of practice:

  • Properties and treatment of clay
  • Preparation of plaster groundings
  • Production of various plaster mixtures (based on pit clay, clay powder, ready mixes)
  • Under and over plaster
  • Incorporation of reinforcement fabric
  • Apply clay plaster
  • Finishing of plaster surfaces (rubbing, sponging, smoothing)
  • Discussion of various possibilities of surface treatment and design on the basis of specific room examples (different wall colors, colored plasters, brush coats)

The focal points are determined by the participants. The seminar is dedicated exclusively to the clay plaster.

What are we working on: The artistic interior plastering of the first small residential wood / mud house on Su Orteduso of about 30 square meters.

The people behind the workshop

Isabella Breda


Isabella Breda completed her studies of architecture at the IUAV and then worked in the architecture studio Bellavitis Associati Architetti di Venezia. Bit by bit her focus shifted towards architecture of clay. Especially because of the enormous possibilities this material offers in the interplay between architecture and art.

She participated in various trainings, ia. AMACO (CRATerre) and Les Grands Atelier de l'Isle d'Abeau (France). All of her activities, however different they may be, are based on the creativity and the arts that arise from the connection between man and nature. Since 2006 she works full-time in earth building. (Clay plaster, wall decoration, lamps, etc.) Isabella has continued to study ceramics in order to better understand clay as a material and specialized in interior design. She teaches material science for use in art and construction. A work that represents the "ecology of sensitivity" for her. Instagram: isabellabredaterre;

Kenji Matsuki

Kenji Matsuki

General Manager of the company Generale di Souchikusya inc. Born in Tokyo in 1963. In 1978 he was hired as an apprentice in a plaster company, 6 years later he started his own business and opened the shop "Matsuki Plastering". Several times awarded for his work, ia. with the yellow merit ribbon of the Japanese state (2018). He participates in various projects and initiatives worldwide: France, Italy, Thailand. After participating in the Expo 2015 in Milan, he also organized various workshops there. Always with the focus: The earth as a building material for plastering. Since 2016, he exhibits annually at the "Fuori Salone" in Milan.;

Marius Kaup

Marius Kaup

The question of the "why" has been with Marius Kaup for almost his entire life. The wonderful thing about this question is: it is just as unanswerable as the question of the meaning of life. Answers require questions, questions cause answers. Anyone who transcends this game discovers a secret beyond it. After studying Philosophy and Business Administration in Munich, the Construction of a tourism company for the destination Sardinia, various positions in banking, corporate and startup consultancy, he is today a Mediator between man and (his) nature. His various trainings in Organizational development, systemic consulting, yoga and naturopathy serve him as a valuable resource for this vocation. Contact:; Email:

Efisio Fois

Efisio Fois

Efisio has a constant need to create and research. In nature, he takes inspiration for the creation of organic forms with natural materials. Efisio has worked as a librarian for children, as a carpenter, as a farmer, as a teacher of crafts, has worked in the natural area and organizes cultural events. For some years he has been working on the creation of an eco-village, which tries to preserve the antroposophic-ecological balance in the world.

Where does the workshop take place?

The project – Su Orteduso

Mediation between man and (his) nature should be paramount in this project so that this journey, almost as an aside, can be completed without a fuss and without teacher, trainer or guru. Without wishing to belong to a religion, for me it was a matter of emotional creation of a place that serves anyone who has the courage to let himself step down from sending to receiving, who dares to hearken to the faint tones of nature in order to have his own existential experience that he alone creates and that is just as faint, mystical and hidden as the secret worth discovering.

Su Orteduso is created based on sustainable cycles close to nature and in perpetual operation. We used David Holmgreen’s twelve principles of permaculture. They are: 1. Observe and interact: 2. Catch and store energy; 3. Generate a yield; 4. Apply self-regulation and learn from feedback; 5. Use renewable resources and services; 6. Produce no waste; 7. Design patterns first and then details; 8. Integrate rather than segregate; 9. Use small and slow solutions; 10. Use and value diversity; 11. Use edges and value the marginal; 12. Use and respond creatively to changes.

By long-term observation of the nature of this 25 ha hill at a location steeped in history between a historical cemetery and an old prison from Mussolini’s times in Castiadas - roughly one hour east of Cagliari toward the coast, - we attempt to create solutions that are in the best possible harmony with our lives. On the property right at the foot of the Sette Fratelli National Park, there were traditionally hundreds of olive trees. We made a “Food Forest” out of this with additional, old fruit and vegetable varieties, found herbs for natural pest control, dug kilometers of trenches at an elevation line to keep the rain water on the property and preserve it from the threat of desertification, built stone terraces, brought solar power to the area to pump water, created micro-environments with organic material and worms to have a continual supply of compost soil. The logic according to which this place has been built does not allow people to consume their environment, but rather to enter a productive, very respectful and thankful, creative exchange with it. This type of interaction and relationship between the human beings and their natural environment leads to changes in the behavior of the settlers, which is in turn the basis for the existential experience of a dimension of human existence that it is not accessible to reason.

Adresse: Azienda Agricola Marius, Su Orteduso / vicino il vecchio cimentero, 09040 Castiadas, Italy / Sardinia

When will the workshop take place?

09 - 14 (morning) November 2019
Olive harvest with Efisio Fois (optional)

Yoga 7:30 - 8:30 (optional)
Harvest 9:30 - 13:00
Lunch 13:00 - 14:00
Harvest 14:00 - 17:30
Dinner 19:00 - 20:00

14 (afternoon) - 17 November 2019
Clay building workshop with Isabella Breda and Kenji Matsuki

Yoga 7:30 - 8:30 (optional)
Workshop 9:30 - 13:00
Lunch 13:00 - 14:00
Workshop 14:00 - 18:00
Dinner 19:00 - 20:00

More information

Vegan full board (breakfast, lunch, dinner) included. Food intolerances, as well as special requests are to be regulated personally and can not be considered.

Due to the generous sponsoring by the Sardegna GmbH (Link we will be able to stay in very beautiful houses right on the beach on the Costa Rei, examples:

Accommodation is in the twin room. Single travelers will also be accommodated in a twin room and assigned to a room partner. Wishes in the assignment we will try to consider, but can not be guaranteed. Single room will not be there, not against surcharge.

We will try to organize transportation between accommodation and workshop place. Both are about 10 minutes away by car. All other transports have to be regulated individually. It is recommended to get together for the time being. Find it:

Meals per day: 40 euros
Accommodation costs per night: 20 Euro
Workshop costs per day: 50 Euro
Olive harvest: free of charge

Total per day during the workshop: 110 Euro = 330 Euro (3 days)
Total per day during the olive harvest: 55 Euro (Flexible arrival)



Registration here:

We are giving away three free volunteer places for a photographer and a vegan cook, as well as a kitchen help. If interested, please email to

Please by mail:

Workshop flyer
Download the workshop flyer.

In co-operation with
Associazione Internazionale Città della Terra Cruda
Sardegna GmbH
Su Orteduso - Azienda Agricola Marius