Mit "Porosität" benannten Walter Benjamin und Asja Lacis einst Neapels Eigenschaften: Räume gehen ineinander über, bieten Spielräume für Unvorhergesehenes, Improvisation ist Alltag. Heute wird der Begriff Porosität mit Bezug auf diesen Kontext zunehmend konzeptionell verwendet. Renommierte Autoren aus Architektur, Stadtplanung und Landschaftsarchitektur begeben sich auf die Suche nach neuen Konzepten für eine lebenswerte, menschenfreundliche Stadt - im Zeichen dieses schillernden Begriffs. Er dreht sich um die Überlagerung und Mischung von Räumen und Strukturen, um städtische Texturen und ihre architektonischen Eigenschaften und Qualitäten: um die Stadt der radikalen Durchmischung.

Some time ago, Walter Benjamin and Asja Lacis used the term "porosity" with reference to Naples' urban characteristics - spaces merging into each other and providing the backdrop for the unforeseen - improvisation as a way of life. Today, the term "porosity" in this context is increasingly used conceptually. Well-known authors from the worlds of architecture, town planning, and landscape design embark on a search for new concepts for a life-enhancing, user-friendly city - with reference to this enigmatic term. The term refers to the overlaying and interweaving of spaces and structures, to urban textures and their architectural properties and qualities - to cities with radically mixed urban functions.

• Content
• Porous City-From Metaphor to Urban Agenda
• Reflections on the Term
• Porosity—Porous City
• News from Naples? An Essay on Conceptual Narratives
• Porous—Notes on the Architectural History of the Term
• Urban Porosity and the Right to a Shared City
• Drifting Clouds: Porosity as a Paradigm
• The Ideal of the Broken-down: Porous States of Disrepair
• Porous Iridescences
• Porosity: Why This Figure Is Still Useful
• Architecture and Urban Design
• Exploring the Unforeseen—Porosity as a Concept
• Still Here while Being There—About Boundaries and Thresholds
• Negotiating Porosity
• Deep Threshold
• Porous and Hybrid: Conditions for the Complex City
• Thinking about Staircases: Circulation Spaces in Residential Housing
• Porosity of the Monolithic
• Bigness and Porosity
• Reintroducing Porosity
• Space In-between
• Theodor Fischer, Urban Spaces Munich
• Ambiguous Figure and Cloud
• Producing Space and Acting
• Performativity, Sensuality, Temporary Interventions, Negotiation
• What Can Architecture Do? Blueprint for a Porous Architecture Museum
• The “Curated” City—Art in Public Space
• Building Vibrant Environments
• Porosity and Open Form
• WandererUni around the World
• Improvised City
• Does the City Blur All Its Traces?
• Open Leipzig, 2009
• Salsa Urbana
• Beyond the Wall The Tentative Collective
• Urban Regulations and Planning
• About Legal Frameworks, Basic Politics, and Tactics
• Toward a New Land Reform
• Urbanes Gebiet
• The Porous City Cannot Be Planned!
• Cities in Suspension
• A City Is an Apple Tree
• Porosity—Is Munich a Porous City?
• Just Design It: Porosity as Leeway for Designing Urban Space
• Cairo’s Advanced Informality
• Cairo Episodes
• Urban Territoriality and Strategies
• Moving from the Macro- to the Microscale in the Anthropocene
• The City in the Anthropocene—Multiple Porosities
• A New Water Metabolism: Porosity and Decentralization
• Holes in the Future City: Java’s Volcanoes
• Porous or Porridge City?
• The Connected and Multiscalar City: Porosity in the Twenty-first Century
• Urban Landscape Infiltrations
• Porosity as a Structural Principle of Urban Landscapes
• Detecting Porosity
• Hanging Around in the Urban Field
• Porosity in Public Spaces of Migration
• When Commons Become Common
• St. Louis 1875–2025
• Contested Porosities
• Bahnhofsviertel
• From Diversity to Porosity
• Porous Boundary Spaces in the Beijing Old City
• From Counterinsurgency to Urban Quality
• Flows, Processes, and Weak Urbanization in Mexico City
• Situation
• Accentuate the Positive…
• Contributors / Authors
• Picture Credits / Impressum