Solrødgård Water Treatment Plant by Henning Larsen

Water Treatment Plant

Nearly two-thirds of the world’s population experiences severe water scarcity during at least one month of the year. As climate change and global crowding intensify, this figure will only become more severe. The Solrødgård (Solrodgaard) Climate and Environment Park, serving the city of Hillerød in northern Zealand, seeks to shine a brighter spotlight on the global challenge of sustain-able resource use.

Developed from a 50-hectare, 1 billion-DKK masterplan, the park aims to open a community dialogue on resource use and climate awareness by creating public appeal within municipal infrastructure. Henning Larsen contributed to the open park with their exterior design and landscaping for the Solrødgård Water Treatment Plant, embed-ding the public facility within an accessible earthen framework. Here, a recycling center, wastewater treatment plant and administrative facility stand alongside walking trails, a birdwatching tower, and a roosting hotel for local bats.

By weaving recreational space into public utilities, the park creates a unique space where vis-itors can gain a natural, firsthand exposure to the cycle of natural resources within the community. The design extends a critical conversation on resource scarcity, which dispro-portionately affects developing communities. The project sets the industrial facility into the landscape, conceptually pinching the grass and lifting it up to insert program in the space underneath. A service road splits the space in two; the facades exposed in this cut are clad in weathering steel, giving the exterior the appearance of a poche section cut of the earth.

The roof on top is a web of meandering pedestrian paths, weaving through perennial plant beds whose blossoms shift in color through the seasons (green, yellow, and red.) Visitors can peer through skylights on the roof and these central glass facades into the plant’s processing wing and filtration facilities, to watch as the plant treats 15,000 cubic meters of wastewater each day. The design concept allows the community to connect with their own use of resources, while minimizing the visual and olfactory presence often associated with water treatment plants.

“The rooftop paths give a view over the rest of the park, but the central pathway is really where visitors can get an idea of how their community’s water cycle works,” explains Ma-rie Ørsted Larsen, Senior Landscape Architect at Henning Larsen. “It’s symbolic of us cut-ting into the landscape to look within, creating a contrast between the natural water cycle and the constructed process that supports our communities.” A small creek trickles through this central channel, passing through a narrow garden that demonstrates how natural foliage cleans and filters groundwater.

For visitors passing through, this installation is an organic contrast to the industrial presence of the water treatment plant, prompting reflection on the function and environmental footprint of the public utility. The Solrødgård Water Treatment Plant is capable of expanding its processing capacity to support future growth in and around Hillerød, and is capable of recycling phosphorous and producing biomass heat energy from the wastewater. Future communities will be able to explore a landscape that provides recreation, a connection to nature, and an everyday education in climate awareness. Source by Henning Larsen.

  • Location: Lyngevej 2, 3400 Hillerød, Denmark
  • Architect: Henning Larsen
  • Project manager: Anders Park
  • Project Team: Annesofie Feidenhansl Milner, Daniel Baumann, Ja-cob Astor, Lærke Dyrholm Møldrup, Marie Ørsted Larsen, Melissa Sandoval, Mikkel Hune, Morten Hauch, Nikolaj Sandvad Ramskov, Omar Dabaan
  • Masterplan Architect: Gottlieb Paludan
  • Engineer: Orbicon Contractor: Jakobsen & Blindkilde
  • Client: Hillerød Forsyning
  • Building footprint: 12,800 square meters
  • Year: 2017
  • Photography: Jacob Due, Daniel Baumann, Courtesy of Henning Larsen

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