Algarve
Model Urban Living – Diverse, Sustainable, and Green
  • Location
    Duisburg
  • Project
    Development of a master plan for the Algarve site in Duisburg as the basis for above-ground construction
  • Client
    ZAR Real Estate Holding GmbH & Co. KG
  • Organizing Authority
    ISR Innovative Stadt- und Raumplanung GmbH
  • Design Authors
    Caspar Schmitz- Morkramer (caspar.) with Prof. Manuel Bäumler (Schellenberg + Bäumler Architekten) and Prof. Thomas Fenner (studio grüngrau)
  • Landscape architecture
    studio grüngrau, Düsseldorf
  • Urban Design
    Schellenberg + Bäumler Architekten, Dresden
  • Sustainability
    Werner Sobek, Stuttgart
  • Planning Period
    2023
  • Site Area
    95,210 m²
  • Visualizations
    Paul Trakies

Our conceptual masterplan for the “Algarve” sitein Duisburg is based on the vision of an urban neighborhood with model character – compact, diverse, and multifunctional. The goal is to create a new urban setting that serves both as a place of work and everyday life, while largely remaining free of through traffic. Vehicular access is provided from the edge via Wanheimer Strasse and a newly planned street. Cars are intercepted early and directed into an integrated parking garage and a multimodal mobility hub with shared transportation options. Both facilities are architecturally embedded in the development and accommodate active ground-floor uses such as a bicycle repair shop with a café – near the Kultushafen, a former habor basin.
The site occupies the former “Alga-Werke” industiral complex in Duisburg-Wanheimerort, an area with rich manufacturing history. Existing structures such as the old annealing building and the distinctive Alga Tower still bear witness to this past. The design honors this legacy while reinterpreting it through a vibrant mix of living, working, and leisure within a model urban block.

Open Space as a Social and Ecological Catalyst

At the heart of the district is the “Werkpark”: a generous green space running along the north-south axis, that serves as both a a spatial and social backbone. A network of squares and alleys, together with sensitively reused historic buildings, fosters a strong sense of identity. Three key building blocks define the layout:

  • Block I integrates flexible workspaces, housing, a daycare, a hotel, and a high-rise landmark.
  • Block II reuses existing structures, anchored by the “Hall for All” – a venue for education, culture, and community. 
  • Block III offers local services and small-scale offices, complemented by green rooftop terraces.

With vibrant ground floors, quiet retreats, and varied building heights, the design responds to the complex demands of urban life while reflecting local character.

Green Variety, Expressive Spaces

The Werkpark forms the landscape backbone, linking all parts of the quarter. It functions as a public space for gathering, play, recreation, and climate adaptation, enabled by integrated blue-green infrastructure. Sculpted topographies, retention basins, and resilient vegetation enhance biodiversity, provide cooling, and improve livability.

Additional features include a plaza with water elements, an elevated Rhine promenade with views of the Kultushafen, gardens, intimate courtyards, and green rooftops. Inspired by the English garden’s “ha-ha” principle, gentle slopes create openness and flowing spatial transitions. All outdoor areas are car-free, enabling high-quality public and private realms. Diversity and identity emerge through contrast: between new and old, built and green, open and enclosed.

Future-Ready: Resource-Conscious, Circular, and Inclusive

Designed as an ecological model, the district integrates sustainability across environmental, economic, and social dimensions. It targets a climate-resilient, low-carbon built environment. New buildings follow cradle-to-cradle principles, using separable, recyclable materials within closed-loop cycles.

Where possible, existing structures are preserved and upgraded with features such as PV facades and green walls. The energy strategy combines passive design, renewables, and green technologies. Strategic noise protection – through smart zoning, buffers, and sound-absorbing facades – ensures a quiet inner quarter. Compact layouts, prefabrication, and lifecycle-oriented planning deliver efficiency without compromising quality.

			one						
Project team