Biodiversity

Podcast

“ Making the most out of urine in agriculture isn't a technological or technical issue, it's a matter of social organization. ”

Podcast

“ Making the most out of urine in agriculture isn't a technological or technical issue, it's a matter of social organization. ”


Recycling urine to fertilize the soil

Since urine is an inexhaustible ecological fertilizer, why not use it instead of chemical fertilizers that are expensive to produce? Designer Louise Raguet suggests bringing back to the fields what has been collected there. Her research with the LEESU laboratory (École des Ponts) has led her to develop a unique project: urine separation in the future Saint-Vincent de Paul district of Paris.

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  • Neuvecelle
  • 2025
  • Work in progress
  • Neuvecelle
  • 2025
  • Work in progress
La Source Vive

La Source Vive is a new concert hall dedicated to chamber music located in Évian. The result of a collaboration between architects Patrick Bouchain and Philippe Chiambaretta. Its conch-like form is the outcome of sensory experimentation and scientific analysis aimed at achieving exceptional acoustics while blending seamlessly into its scenic surroundings. The project is housed by the Évian Resort and embodies Aline Foriel-Destezet’s commitment to promoting music. Born of her desire to support the creation of an architectural complex featuring a unique concert hall in service of a major music project, La Source Vive will be located at the Mélèzes site, in the close vicinity of La Grange au Lac, another iconic music venue designed thirty years ago by Patrick Bouchain. Together, they will form an exceptional architectural complex dedicated to music—two complementary facilities within the same institution working together to provide a complete, open, and supportive musical experience.

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  • Paris
  • 2023
  • Delivered
  • Paris
  • 2023
  • Delivered
Stream Building

Covivio, Hines France, and PCA-STREAM have come together to create the Stream Building, a manifesto building located at the heart of the new Clichy-Batignolles district that integrates almost fifteen years of research by Stream Lab into innovations addressing the key challenges facing the cities of tomorrow. Circular by design, the Stream Building is a relational and productive hub that will energize this new urban center within the Greater Paris area by concentrating all the activities associated with a vibrant urban life.

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  • Paris
  • 2020
  • Delivered
  • Paris
  • 2020
  • Delivered
175 Haussmann

The restructuring of 175 Boulevard Haussmann is an opportunity to become involved in making Paris a resilient and innovative city, one that is capable of renewing and reinventing itself. PCA-STREAM brings together two separate buildings to create a coherent office complex geared toward the well-being of its users and collaborative work. An emblematic contemporary rooftop addition, characterized by its glass scales, acts as a practical and symbolical connector between the various buildings and architectural periods involved.

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  • Paris
  • 2018
  • Delivered
  • Paris
  • 2018
  • Delivered
15 Laborde

Located near the Saint-Lazare train station, these new-generation offices in a former military barracks combine the best of two architectural heritages. They offer a comfortable and prestigious workplace, turned towards nature and the well-being of its users, French law firm Gide-Loyrette-Nouel. The building's heritage is magnified and remodeled, enhancing its attractiveness and competitiveness, while helping to write a new page in the history of Paris's ever-changing urban fabric.

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Podcast

“ What can we change in the way we inhabit the land to preserve the soil as an environment? ”

Podcast

“ What can we change in the way we inhabit the land to preserve the soil as an environment? ”


Soil as an environment, property as an inhabiting capacity

Elissa Al Saad is an architect and laureate of the 2023 Palladio Fellowships for her thesis on soil as an environment. By comparing different possible forms of land appropriation, she raises the issue of preserving land resources in relation to ownership. The aim is to think of property as a support for a way of inhabiting that considers land as a common good.

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Podcast

“ What will Paris be like under 50°C? How can we postpone this scenario and be better prepared for it? ”

Paris at 50°C

Alexandre Florentin

Podcast

“ What will Paris be like under 50°C? How can we postpone this scenario and be better prepared for it? ”


Paris at 50°C

Our dense, mineral-rich capital is ill-suited to the extreme heat we’ll increasingly have to cope with. So what adaptation strategies can we implement? This is what we asked to Alexandre Florentin, Paris councillor responsible for resilience and climate issues. He chaired the “Paris at 50 degrees” mission, which delivered its report a few months ago: what fields of action for architects and urban designers?

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  • Montpellier
  • 2019
  • Delivered
  • Montpellier
  • 2019
  • Delivered
MOCO — Contemporary art center

A new institution for the arts in Montpellier, the MOCO brings together the Panacée and the École Nationale Supérieure des Beaux-Arts of Montpellier Méditerranée Métropole around the Montcalm Hotel. This headquarters for contemporary creation aims to federate the art scene in Southern France, and to break with cultural centralism, while at the same time avoiding a repetition of the “Bilbao” recipe of the spectacular object. It explores the possibilities for the transformation of the city through art in line with an organic model that rises to the contemporary challenges of regenerating historic cores and recycling existing architecture. The MoCo is in phase with a younger generation’s aspirations towards collective appropriation, co-production and the idea of making do with and together.

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  • Paris
  • 2014
  • Delivered
  • Paris
  • 2014
  • Delivered
PCA-STREAM Office

PCA-STREAM takes its inspiration from its research on new workspaces, which are gathered in the second issue of the Stream book-magazine, “After Office,” in order to design its premises in the Marais, on the site of a former printing house. Designed as an ecosystem that brings together a variety of spaces for the use of a large multidisciplinary team, this place is the spatial embodiment of PCA-STREAM as well as a manifesto of its innovative vision of the work space.

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Article
Article

Exotic trees in the City

Botanist Serge Muller, a professor emeritus at the French National Museum of Natural History, is a specialist of “invasive alien species.” He discusses the concept of “nativeness” and lays out the contours of a policy opening cities to new tree species that could become important allies in coping with global warming. Based on an interview conducted in partnership with Coloco.

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Vidéo

Véronique Mure

Vidéo

Root gardening

To understand the living, you need to understand the invisible. This is what Véronique Mure, a botanist specializing in Mediterranean landscapes, is convinced of. By focusing on the relationship that people have with plants, she raises awareness on the importance of soil and roots and invites us to take care of them, like gardeners.

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Podcast

“ Every citizen on the planet is a gardener. ”

The gardener's intelligence

Gilles Clément

Podcast

“ Every citizen on the planet is a gardener. ”


The gardener's intelligence

Gilles Clément coined the concept of the ‘planetary garden’ which invites everyone to take care of the Earth as they would a garden. Having all too often been confronted with the sheer ignorance of how ecosystems and the living world operate, he, therefore, proposes creating a Ministry of Knowledge to lift us out of the ‘Stupidocene.’ Read transcript A PCA-STREAM production Coordination: Jasmine Léonardon Editing: Mattéo Caranta Music: Alexandre Desplat

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Vidéo

Ariane Lourie Harrison

Vidéo

Posthuman architecture

Ariane Lourie Harrison, architect, and professor at Yale University tells us about posthuman architecture, a performative and interactive approach to the built environment that addresses multiple species. Scientific technologies have allowed us to increase our knowledge about species (including microbes and bacterias) and establish new ways of communicating with them. This new relationship between human and nature is essential in an architectural context where “greenwashing” often doesn’t actually respect biodiversity and the needs of animal and non-human entities.

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stream voices

Eager to share more generously the results of its collaborations and research, PCA-STREAM publishes STREAM VOICES, its online magazine!

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