Dutch architecture firm Powerhouse Company has used cross-laminated timber to construct an off-grid office building that floats on water. …The three-storey building is constructed on a set of 15 “concrete barges” that allow it to float on Rotterdam’s Rijnhaven, a former industrial harbour on the Maas river. A wooden structure, including cross-laminated timber (CLT) floor slabs, contributes to the building’s low carbon footprint and also ensures it is light enough to float. …The building is the largest of its kind in the world… The wooden structure consists of prefabricated frames that were simply screwed together on-site, meaning they could be disassembled and recycled in the future. “The building structure is designed in wood and can easily be demounted and re-used,” said architect and project leader, Paul Sanders. …Powerhouse Company sees the project as an example of how architecture can adapt to the rising sea levels caused by climate change.