River Remediation and Urban Development Scheme in Morocco

A phased intervention to reclaim the Fez River and revitalise urban life in the medina

River Remediation and Urban Development Scheme in Morocco

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    River Remediation and Urban Development Scheme in Morocco - Project Entry 2008

    A comprehensive approach for the river Fez to run free and clean again.

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    River Remediation and Urban Development Scheme in Morocco - Project Update January 2013

    The project will stop the Fez River from being polluted by sewage overflow and will allow the river to regain its potential as a public amenity.

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    River Remediation and Urban Development Scheme in Morocco - Project Update January 2013

    The “el-Rcif Plaza” was previously cluttered with buses, taxis and informal parking – but is now a core of the pedestrian network.

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    River Remediation and Urban Development Scheme in Morocco - Project Update January 2013

    The “el-Rcif Plaza” melds the transportation hub and the river bank circulation system.

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    River Remediation and Urban Development Scheme in Morocco - Project Update September 2010

    The archway marks the entry to the “el-Rcif Plaza”, now a core of the pedestrian network.

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    River Remediation and Urban Development Scheme in Morocco - Project Update September 2010

    Adjacent buildings and their foundations are fragile and several centuries old.

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    River Remediation and Urban Development Scheme in Morocco - Global Holcim Foundation Awards 2009 Gold Presentation

    Winners (l-r), Takako Tajima and Aziza Chaouni of Bureau EAST, Morocco/Canada/USA congratulated by Markus Akermann, Chairman of the Management Board of the Holcim Foundation and CEO of Holcim Ltd, Switzerland.

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    River Remediation and Urban Development Scheme in Morocco - Global Holcim Foundation Awards 2009 Gold Presentation

    Congratulating the winners (l-r): Haruko Hirose, Special and Plenipotentiary Ambassador of Japan to Rabat; prize-winner Aziza Chaouni, architect and co-founder, Bureau EAST, Morocco/Canada/USA; Mohammed Gharrabi, Wali of Fez-Bouleman, Morocco; and prize-winner Takako Tajima, urban planner and co-founder, Bureau EAST, Morocco/Canada/USA.

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    River Remediation and Urban Development Scheme in Morocco - Holcim Foundation Awards 2008 Gold for Middle East & Africa Presentation

    Winning team members Holcim Foundation Awards Gold 2008 for Middle East & Africa (l-r): John Ferri, Takako Tajima, Aziza Chaouni, Dan Brunn.

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    River Remediation and Urban Development Scheme in Morocco - Project Entry

    Resuscitation timeline and the new economic model.

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    River Remediation and Urban Development Scheme in Morocco

    Master plan for regional water quality improvement.

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    River Remediation and Urban Development Scheme in Morocco

    Evolution of the Medina of Fez

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    River Remediation and Urban Development Scheme in Morocco

    Procedures for new public spaces in the Medina of Fez.

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    River Remediation and Urban Development Scheme in Morocco

    Sebou River watershed and water quality.

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    River Remediation and Urban Development Scheme in Morocco

    Rcif public transit hub.

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    River Remediation and Urban Development Scheme in Morocco

    Detail section of restorer.

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    River Remediation and Urban Development Scheme in Morocco

    Andalous bank playground.

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    River Remediation and Urban Development Scheme in Morocco

    Chouarra tanneries.

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    River Remediation and Urban Development Scheme in Morocco

    Chouarra tanneries.

  • Awards Gold 2008–2009 Middle East Africa
  • Awards Gold 2008–2009 Global

The River Fez once flowed visibly through the heart of the ancient medina of Fez, Morocco—a UNESCO World Heritage Site known for its cultural and architectural legacy. Over time, however, the river became polluted and largely concealed, its decline reflecting the broader environmental and social challenges facing the historic city. With over-densification, decaying infrastructure, and a lack of open public space, the medina has seen a steady erosion of both quality of life and civic identity.

By Aziza Chaouni - Aziza Chaouni Projects, Toronto, Canada; Takako Tajima - Bureau EAST, Los Angeles, CA, USA and

A turning point came in 2007, when the city’s Department of Water and Electricity (RADEEF) diverted sewage away from the Fez River and into newly constructed treatment plants. This vital infrastructure upgrade stopped the flow of raw wastewater into the river and reintroduced the possibility of using the river as a public and ecological asset. To build on this opportunity, RADEEF commissioned architects Aziza Chaouni and Takako Tajima to develop a plan to rehabilitate the river and design targeted, site-specific interventions within the medina.

River Remediation and Urban Development Scheme in Morocco

Project authors

  • Vesna Kann

    Bureau EAST

    Canada

  • Faiza Zemmouri

    Faiza Zemmouri Consulting

    Morocco

  • John Ferri

    RADCORP

    USA

  • Reem Alissa

    University of California Berkeley

    USA

  • Marco Cenzatti

    Harvard University, Graduate School of Design (GSD)

    USA

  • Dan Brunn

    Dan Brunn Architect (DBA)

    USA

  • Nicko Elliott

    Bureau EAST

    Morocco

  • Hester Ezra

    Butterfly Works

    Netherlands

  • Bonnie Kaplan

    Medina Solutions

    Morocco

  • Dennis Rijkhoff

    Bureau EAST

    Canada

  • Alex Toshkov

    Columbia University

    USA

  • Marieke van den Heuvel

    Butterfly Works

    Netherlands

Project Summary

Strategic Layers of Renewal

The resulting project is both strategic and deeply contextual. Operating at two scales—citywide and site-specific—it proposes a combination of ecological, infrastructural, and civic interventions. At the urban scale, the plan addresses water quality and flood risk through restoration of canals, riverbanks, and rainwater retention basins, alongside the creation of constructed wetlands. At the site level, acupuncture-style interventions within the medina aim to restore public space, support traditional industries such as leather tanning, and improve pedestrian access through revitalised paths and gathering places.

River Remediation and Urban Development Scheme in Morocco - Project Update January 2013

The project will stop the Fez River from being polluted by sewage overflow and will allow the river to regain its potential as a public amenity.

This phased and adaptive approach is guided by the principle of working with what already exists—restoring rather than replacing, and allowing future possibilities to emerge organically. The Holcim Awards jury praised the project for coupling environmental remediation with social and economic renewal, noting its potential to restore the vitality of Fez for residents and visitors alike. More than a plan for river recovery, it is a model for urban regeneration rooted in history, ecology, and community.

Project Authors

  • Project Coordinator

    Takako Tajima

    Urban Designer, Bureau EAST

    USA

  • Project Team

    Reem Alissa

    Landscape Architect, University of California

    USA

  • Project Team

    Dan Brunn

    Architect, DBA

    USA

  • Project Team

    Marco Cenzatti

    Industrial Districts Expert, Harvard University GSD

    USA

  • Project Team

    Nicko Elliott

    Designer, Bureau EAST

    Morocco

  • Project Team

    Hester Ezra

    Co-Founder and Creative Director, Butterfly Works

    Netherlands

  • Project Team

    John Ferri

    Architect and Builder, RADCORP

    USA

  • Project Team

    Bonnie Kaplan

    Restoration Specialist and Engineer, Medina Solutions

    Morocco

  • Project Team

    Dennis Rijkhoff

    Designer, Bureau EAST

    Canada

  • Project Team

    Alex Toshkov

    Historian, Ph.D candidate, Columbia University

    USA

  • Project Team

    Marieke van den Heuvel

    Design Researcher and Project Manager, Butterfly Works

    Netherlands

  • Project Team

    Faiza Zemmouri

    Economist, Faiza Zemmouri Consulting

    Morocco

Jury Appraisal

Bringing the River Back to Life

The River Remediation and Urban Development Scheme in Fez, Morocco, is a transformative, multi-sited project focused on reviving the historic Fez River and revitalising the surrounding medina. Once a vital artery flowing through the UNESCO World Heritage-listed city, the river became heavily polluted and largely hidden due to decades of unregulated wastewater discharge. In 2007, a key shift occurred when the city’s Department of Water and Electricity (RADEEF) redirected sewage to new treatment plants, creating an unprecedented opportunity to reclaim the river as a clean, living public asset. Commissioned by RADEEF, architects Aziza Chaouni and Takako Tajima developed a comprehensive strategy operating at both city and site scale. Their approach combines ecological restoration—such as constructed wetlands, canal renewal, and riverbank rehabilitation—with targeted interventions in the medina, including the restoration of traditional tanneries, revitalised pedestrian pathways, and improved public spaces. The project is conceived as an open-ended, phased process that begins with what exists, building incrementally toward long-term ecological, social, and cultural recovery.

River Remediation and Urban Development Scheme in Morocco

Resuscitating the Fez River – Chouarra Tanneries pits restoration + path remediation with Indian mustard + buildings rehabilitation and extension.

Designing with Wisdom

The Global Holcim Awards jury praised the project for its adaptive wisdom and phased methodology. “What marks this project is its wisdom that keeps the process open to future possibilities,” the jury noted. The strategy embraces what is already present in the city, using existing conditions as a foundation for renewal. River recovery is envisioned as a dynamic process—on one end, restoring original ecologies and promoting biodiversity; on the other, reactivating economic and civic life, such as reviving craft industries and raising ecological awareness. The jury acknowledged the project’s strength in emphasising process over static form, enabling future additions like flash flood mitigation without compromising the original vision. This balance of environmental, cultural, and infrastructural recovery underscores the project's capacity to serve as a replicable model for urban resilience in historic settings.

River Remediation and Urban Development Scheme in Morocco

Desecration of Fez River. In 1952 the river ran freely through the medina. Today one barely noticed where it was crossed.

Rooted in Community, Built for Change

The Regional Holcim Awards jury recognised the project with a Gold Award for Africa Middle East, highlighting its successful integration of socio-cultural, economic, and environmental agendas. They described it as “a comprehensive socio-cultural and economic program coupled to an environmental remediation initiative.” The river, which once defined the spatial and cultural identity of the medina, had become an urban nuisance. The project’s proposal to lay the river open again and reintegrate it as a public amenity was seen as both timely and visionary. Particular commendation was given to the transformation of degraded sites, such as the Chouarra tanneries, into assets through community-supported programs including a leather-craft centre, recreation spaces, wetlands, and botanical gardens. These interventions not only address environmental degradation but also offer tangible social benefits, reaffirming the project’s value as a strategic environmental and urban catalyst for the city of Fez.

TED Talk

"How I Brought a River—and My City—Back to Life"

Aziza Chaouni shares the story of reviving the Fez River in her TED Talk, Vancouver 2014.

In a compelling TED Talk delivered in Vancouver, architect Aziza Chaouni shared the inspiring story behind the transformation of the Fez River. In just six minutes, she outlines how a once-polluted waterway running through the historic medina is being brought back to life—thanks to the city’s decision to divert untreated sewage and industrial runoff for proper treatment. Chaouni describes how the project is not only restoring the river’s ecological health, but also reweaving it into the fabric of urban life by turning forgotten riverbanks into walkable pathways and much-needed public spaces in the heart of Fez.

Project Updates

Statements on Sustainability

  • By approaching urban challenges from a multi-performative perspective, our project offers a powerful methodology especially relevant to developing countries, where resources are limited and basic needs are urgent.

    The project’s approach is particularly well-suited to countries in the Middle East, where medina quarters—a common urban typology—are currently facing acute crises. A lack of open public space and infrastructure adapted to contemporary life affects residents’ quality of life and exposes medinas to speculation, neglect, or museification. Our project demonstrates that careful, strategic interventions can enable medinas to evolve in ways that meet residents’ needs while preserving urban integrity.

  • Our project seeks to enhance the social, economic, and physical well-being of local communities by providing new public spaces, supporting strategies for economic development, and addressing health and safety through the treatment of contaminated water and soil.

    While polluted sites in less affluent areas are often overlooked, our project directly targets these neglected areas—bringing attention and investment where it is most needed.

  • The project introduces a range of measures to improve water quality and strengthen local ecosystems. Constructed wetlands manage excess floodwater, cleanse stormwater, and promote both groundwater recharge and habitat restoration.

    One of our key interventions transforms a soon-to-be vacated tannery site—heavily contaminated with chromium—into a public botanical garden, using Indian mustard for phytoremediation in a carefully phased process.

    All construction will be carried out by local labour, using traditional and energy-efficient building techniques such as on-site baked clay bricks and white plaster, which integrate harmoniously with the existing urban fabric.

  • In collaboration with local and international economists, the project proposes new strategies to align the local leather industry with international environmental and quality standards. As polluting tanners relocate to a new industrial zone, their former facilities will be converted into design cooperatives producing high-value artisanal goods. These new product lines will replace mass-produced items, generating greater wealth and economic opportunity for local communities.

  • The project rehabilitates a historic river whose integrity has been severely compromised by decades of sewage dumping and physical coverage. We will uncover the northern section of the river—currently a disused, concrete-covered wasteland—restoring it as a vital natural and civic feature of the city.