ETAR (WWTP) of Alcântara, Lisbon

ETAR (WWTP) of Alcântara, Lisbon

The intervention takes place as a moment of territorial reconfiguration of the morphology of the Alcântara Valley and as a confrontation between distinct and complementary natures – hillside space/covered space.

Recovering lost continuities, both of visual and ecological systems

“The intervention takes place as a moment of territorial reconfiguration of the morphology of the Alcântara Valley and as a confrontation between distinct and complementary natures – hillside space/covered space. The reconfiguration is carried out in the sense of finding a defined path for a landscape recovery of the valley, for a recovery of a consistent dialogue between the currently disconnected slopes and for a reestablishment of a relationship obstructed by the cut imposed by the current WWTP. Further downstream, the cut is accentuated by the urbanization and transformation, not yet carried out, of the slope exposed to the west. We speak of landscape recovery because we try to recover lost continuities, both of visual and ecological systems. The reminiscence of the archetypal morphology of the valley, the Alcântara Valley, is reinterpreted through the reconstitution of the terrain underlying the road corridors implemented on the half slope. Together with this action, we promote the constitution of the genesis of a pedological substrate capable of supporting a viable vegetation cover, rich in its floristic and imagery diversity, correspondingly decisive for the stabilization and consolidation, for the dynamic balance of the slope and, consequently, for its biological reactivation and for its full integration in the structural systems – visual, ecological, of the city’s landscape.” PROAP

Start Date: 01.2005
End Date: 01.2011
Theme: Infrastructure Integration, Environmental Requalification
Area: 8,4 ha
Client: SimTejo S.A.

Location: Lisbon, Portugal
Authors: João Nunes (PROAP), Carlos Ribas
Collaborators: Carla Silva, Clara Guedes, Joana Barreto, Mariana Sargo, Miguel Coelho de Sousa, Nuno Mota, Sara Neves
Architecture: Manuel Aires Mateus, Frederico Valsassina (FVA)

Designer: ARGEX with PROAP
Year: 2011
Location: Lisbon

owner website

more info at:
PROAP http://www.proap.pt/pt-pt/
FVA https://www.fvarq.com/

Follow us on our social channels.

Follow us on the channel that best suits you to receive our latest updates!

NEW

LATEST POSTS

Resilience by design? Future-proofing urban environments through green roofs

We are happy to present the WGIN European Chapter latest White Paper, which explores the numerous benefits of green roofs as part of sustainable urban green infrastructure. This document provides an in-depth overview of the benefits of green infrastructure solutions, featuring real case studies that highlight their positive environmental, social and economic impacts. It also outlines the crucial role the European Union has been playing and can continue to play in supporting the widespread adoption of these solutions through effective policies and robust regulatory frameworks. Luigi Petito, Head of Secretariat of WGIN European Chapter: “We are pleased to have access to a powerful new paper highlighting the broad benefits of urban green infrastructure. This will be especially valuable for our ongoing work on the follow-up to the European Water Resilience Strategy and the forthcoming European Climate Adaptation Plan”. Explore the full White Paper here.

WGIN Elects new President and Vice – President | Press Release

June 20, 2025: Brussels – The World Green Infrastructure Network (WGIN) is pleased to announce that Steven W. Peck, GRP, GRIMP, Honorary ASLA, founder and president of Green Roofs for Healthy Cities (North America), has been elected as President of WGIN for a two-year term. Professor Marta Weber Siwirska, president of the Polish Green Roof Association was elected as the new Vice President. Professor Manfred Köhler, who has provided outstanding leadership in advancing green infrastructure across the globe as the President of WGIN will now serve as Past President for a two year term.  “Over the years, WGIN’s leader have worked to promote urban green infrastructure solutions thanks to the inspiring leadership and the huge knowledge of Professor Manfred Köhler. He helped the World Green Infrastructure Network to lay the foundation for where we stand today. As we look to the future, I am excited to work with Marta Weber-Siwirska and my new colleagues to continue the mission of rapidly deploying green roofs, walls and other forms of green infrastructure in cities worldwide”. Said Steven W. Peck, in reflecting on this important milestone in WGIN’s development. In addition to the new President, WGIN is proud to welcome several new members to its Advisory Board. Read here the full Press Release.

European Green Infrastructure Day 2025

European Green Infrastructure Day (EGIDay) is the Brussels based policy conference dedicated to exchange views on the state of affairs of urban green infrastructure in the EU and how to unlock their multiple benefits, for citizens, businesses and the environment. The fourth edition of the EGIDay took place on the 24th of April 2025. The event gathered in person EU policymakers, urban green infrastructure experts, local authorities and NGOs to discuss how to turn European cities from grey to green, contributing to climate adaptation and water resilience of Europe’s urban areas.  Speakers: Moderated by Luigi Petito, Head of European Chapter Secretariat, World Green Infrastructure Network Humberto Delgado Rosa, Director for Biodiversity, DG Environment Jutta Paulus, Member of the European Parliament, Group of the Greens/EFA Emily Bankert, Researcher, Buildings Performance Institute Europe Sirpa Pietikäinen, Member of the European Parliament, Group of the European People’s Party Jure Šumi, President of Management Committee & Member of Advisory Board, World Green Infrastructure Network Read the event report Take a look at the photos Download the full programme