Rotterdam-based architecture office Powerhouse Company has unveiled designs for Valckensteyn, a circular and sustainable building expected to become the largest timber-built affordable housing complex in the Netherlands. Commissioned by housing corporation Woonstad Rotterdam, the pioneering, 12-story project will feature 11 stories built of cross-laminated timber without the use of adhesives to allow the building to be demounted and reassembled elsewhere as needed.
Proposed for the post-war Rotterdam neighborhood of Pendrecht, the 40-meter-tall Valckensteyn will occupy the site of a residential complex that was demolished a decade ago. Due to Valckensteyn’s relatively lightweight timber build as compared to steel-and-concrete construction, the architects will be able to repurpose the old building’s foundations — a sustainable design decision that helps to significantly reduce the project’s carbon footprint.
For stability, the affordable housing complex will comprise a concrete ground floor and core. The ground-floor lobby will be clad in travertine — a post-war material with strong ties to the neighborhood — and house a large, inviting space with what the architects hope will be “the most beautiful bicycle storage in Rotterdam.” Cross-laminated timber construction will be exposed in the above floors, where all 82 homes will enjoy connections to the outdoors via floor-to-ceiling windows and timber-clad, west-facing balconies. A lush landscaping plan designed by LAP Landscape & Urban Design will surround the building and stimulate biodiversity. The carpark will also integrate cement-free paving stones and water filtration systems to take on the appearance of a “green carpet.”
“With project Valckensteyn, Woonstad set out the challenge to develop a responsible and sustainable housing supply for middle-income families,” said Robbert Groeneveld, senior project manager at Woonstad Rotterdam. “The desire of Woonstad for a wooden building has been developed into an integrated design where sustainability, housing comfort and nature inclusivity come together.” Construction on Valckensteyn is expected to start in January 2022.
Images via Powerhouse Company