Get in Touch

Get in touch with us.
Just leave a message.

Do you have a question? Feel free to contact us. Would you like to stop by for a cup of coffee and a chat? You'll find us in Delft!

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Where to find SUM

We're located at the Green Village in Delft.

Van Den Broekweg 4, 2628 CR Delft

Contact one of our members

Do you have a specific question?

Frequently Asked Questions

Questions? Here're answers to our most asked questions.

I want to visit the pavilion. How can I visit and when?

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Why is SUM focussing on tenement flats?

SUM tackles the alarming state of Dutch post-war neighbourhoods by creating a solution for tenement flats across the Netherlands and beyond. In the Netherlands, there are 847,00 tenement flats, which represent 11% of the total housing stock. Tackling this type of building creates the opportunity to contribute to Dutch nationwide goals of being energy-neutral in 2050 and adding one million homes by 2030.

With our tenement flat repurposing strategy we would like to make a world where diversity, innovation and social interaction are stimulated. Where clever design solutions can tackle social, economic and environmental challenges. SUM creates a symbiotic breeding ground that leads to affordable, living communities, and a sustainable environment.

What is the Solar Decathlon Europe Competition about?

Initiated in 2002 by the United States Department of Energy, the Solar Decathlon (SD) is a university-level student competition for resource-responsible and energy-efficient architecture and engineering in the building sector. The competition challenges universities from all over the world to design, build and operate a solar-powered and energetically self-sufficient home equipped with advanced technologies, and designed to the highest standards of sustainability.

What does the future hold for SUM?

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Still have questions? Send us a message.