Polydome is a revolutionary approach to greenhouse agriculture that offers the possibility of commercial scale, net-zero-impact food production. The Polydome system strategically interweaves a wide variety of crops and animals, taking advantage of every inch of the greenhouse while eliminating the need for synthetic fertilizers and pesticides.

Polydome is an answer to a part of the world food crisis. With its high yields (60 – 90 kg per square meter), and diverse outputs (over 50 crops, two mushroom varieties, chickens, eggs, fish, and honey), even a small Polydome system can sustainably provide a varied food supply for a large population. Scalable. Profitable.

Polydome has been extensively researched by Except and over 12 partners in the industry. Concept overview and technical details are published in a free open source book, downloadable below.

Growth Planning introduces an entirely new approach to area planning and urban design. Rather than defining specific programmatic requirements, Growth Planning instead applies socio-economic impulses to the area within certain performance edge conditions. It revolutionzes the task of city design by requiring the urban fabric to organically respond to social and economic stimuli, and allows for increased value, quality, and development over time.

Born out of the necessity to start thinking differently about our built environment due to economic, social and environmental constraints, Except has worked on refining this new form of planning since 2005.

This urban redevelopment project of the Fort Point district in Boston, MA proposes a unique strategy to reduce city-wide traffic congestion, increase livability and property values and contributes significantly to the resilience of the city as a whole.

We developed a sustainabile conversion and development plan for the post-war social housing area Schiebroek-Zuid in Rotterdam.  The project provides a flexible and exemplary roadmap for converting the neighborhood into a self-sufficient and sustainable area. It applies innovative energy solutions, urban farming, social and economic programs, secondary currencies, and adaptive redevelopment strategies.

This project was commissioned by housing corporation Vestia and agricultural research network InnovatieNetwerk.

The San Francisco Transbay Center redevelopment project realizes the world’s largest rooftop park in the center of one of the world’s most exciting cities: Salesforce Park. The concept, developed by Except together with Pelli Clarke Pelli Architects, restructures an existing transport hub into a beacon of beauty, biodiversity, and health.  The project started in 2007 and the park opened in 2019.

This project researches a sustainable district heating system in the Dutch city of Tilburg, developed with our consortium partners.

The vision includes both ecological and social sustainability, and functions as the starting point for all parties involved to cooperate toward a sustainable and carbon neutral heat provision.

How can public transportation contribute to resilient and sustainable cities and communities?

With a team of Public Transportation stakeholders and experts in the city region of Rotterdam we developed a vision on how this can be done. The vision came into being through several intense collaborative sessions, and is used to engage new stakeholders and move the agenda forward towards the most sustainable public transport system in the world.

Download the vision booklet below (sorry, only in Dutch).

“Zevenkamp through our eyes: a story of three students and one neighborhood” is an urban transformation project by Except Academy, a learning platform for interns at Except. We developed an inspiration book which tells the story of our journey and experiences while investigating Zevenkamp, the second largest post-war neighborhood in the Netherlands.

The purpose of the book is to inspire and share our vision of Zevenkamp’s future. It has practical examples of opportunities for the neighborhood to become flourishing and resilient with the help of its residents and stakeholders.

Amsterdam Schiphol Airport was born at Schiphol-Oost, over 100 years ago. Today it is a business park that could use more atmosphere and vision. With limited identity, it does not distinguish itself from other business parks in the surrounding area. In collaboration with Schiphol Real Estate (SRE), Except developed a vision and strategy for Schiphol-Oost for the coming 5 to 10 years. The vision transforms Schiphol-Oost to an innovation-garden for the entirety of Schiphol, named Pioneer Park.

Blue Green Infrastructures (BGI) increase the resilience of urban and rural landscapes, integrating their core functions with natural features and processes. Hurdles exist in the process of translating BGI-related knowledge and data from science to practice, and a tool that facilitates this transfer is still missing. We conducted a research in collaboration with a team of partner organizations (JNCC, IFLA Europe, BiodivERsA, and NRW), to pinpoint key preliminary knowledge to design such a tool, and collected our key findings in a report downloadable on this page.