Urban Green Island / OpenFields

Architects: OpenFields
Area: 50 m²
Year: 2023
Photographs: Flavio Palasciano
Lead Architects: Mark Balzar, Zeynep Aksöz
Structural Consultants: Werkraum Ingenieure ZT GmbH
General Contractors: Werkstudio Perco
Category: Installations & Structures
Design Team: Xavier Madden
City: Vienna
Country: Austria

Urban Green Island public installation designed by OpenFields in Vienna’s Museum Quarter has transformed an overlooked transit zone into a flexible and inclusive platform for urban engagement. Completed within just three months, the project redefines public space through a modular stage structured around three zones: an urban garden for community cultivation, a meadow of tall grasses introducing a natural layer into the city, and an intimate performance space encouraging spontaneous social interaction. The design process relied on a parametric design-to-fabrication workflow that enabled real-time updates and direct output for steel fabrication, allowing the project to meet strict time constraints without compromising precision. Built from a lightweight steel framework combined with wood, the structure balances digital design and manual construction. By supporting diverse uses, from rest areas for the homeless to Pride events and literary readings, Urban Green Island introduces a dynamic, adaptive vision for resilient public space rooted in coexistence and accessibility.

The Summerstage, situated in Vienna’s Museum Quarter, reinterprets public space as a dynamic platform that responds to both social and climatic conditions. It functions as more than a stage for performances; it acts as an inclusive urban island that converts a previously neglected transit area into a welcoming and multifunctional setting. It provides a resting area for the homeless, serves as a lively meeting point for diverse communities, and hosts a wide range of events, including Pride performances, DJ sets, philosophical debates, and literary readings. By promoting coexistence, the project challenges standard approaches to urban design and encourages shared experiences among various social groups.

One of the main challenges in executing the project was the extremely short timeline, with only three months allocated for design, development, and construction. To manage this constraint, the team developed a parametric design-to-fabrication system that enabled real-time design updates and automatically generated fabrication drawings for the steel manufacturer. This approach ensured a smooth transition from concept to construction while preserving accuracy and efficiency.

The stage is organized into three distinct zones: an urban garden where seasonal fruits and vegetables are grown, encouraging public involvement; a meadow with tall grasses that introduces a natural element into the urban setting; and a small-scale stage designed to support spontaneous gatherings and performances. By incorporating greenery into the urban environment, the project fosters environmental awareness and contributes to public well-being.

Built using a lightweight steel framework combined with wooden components, the stage was designed for both durability and adaptability. Budget limitations affected the inclusion of specific sustainable features, such as solar panels and self-sustaining irrigation systems, which have been planned for future implementation. Nevertheless, the project effectively illustrates how modular design and thoughtful material selection can achieve a lasting impact within constrained resources.

The Summerstage represents an open and adaptable design strategy that integrates digital precision with traditional craftsmanship. It functions not as a fixed object but as a continuously evolving structure that supports interaction, sustainability, and community involvement. By converting an underused plaza into an active space for social exchange, it presents an alternative approach to urban resilience, one that emphasizes inclusivity and collective experiences at the center of the city.