New Book Documents Rotterdam's Landscape Planning

Rotterdam's ambition to be 100% climate-proof by 2025 frames its urban planning, shifting from fighting water to living with it in a city mostly below sea level. This long-term vision is embedded in the Rotterdam Climate Change Adaptation Strategy, which treats climate adaptation as an opportunity for economic growth and improved livability. This approach combines green-blue corridors and water squares with adaptive measures like floating communities and flood-proof buildings, especially in outer-dike areas. The city's strategy involves a "multifunctional rooftop programme" that utilizes its 15 million square meters of flat roofs for water storage (blue roofs), vegetation (green roofs), solar energy (yellow roofs), and social spaces (red roofs). Over 185,000 square meters of green roofs were installed in 2014 alone, complementing other infrastructure like the underground car park at Museumpark, which can store 10,000 cubic meters of water. These initiatives are part of a broader plan to function as a "sponge city." The author of the book, Nico Tillie, is a landscape architect and Head of the Urban Ecology Lab at TU Delft who previously worked for the municipality of Rotterdam. His research focuses on turning environmental challenges into opportunities to improve quality of life, using landscape architecture to integrate solutions for stormwater, energy transition, and urban agriculture. This work has already informed practical tools like the 'Rotterdam Energy Approach and Planning' (REAP) and the 'Smart City Planner'. This approach aligns with the national Delta Programme on Spatial Adaptation, which mandates that Dutch municipalities, provinces, and water boards integrate climate resilience into all spatial planning to make the country water-robust by 2050. The national strategy, a collaboration across multiple ministries including Housing and Spatial Planning, emphasizes factoring in sea-level rise, heat, and extreme precipitation into every development. Digital innovation is a key enabler of this integrated strategy. While cities like Utrecht and Enschede are developing comprehensive digital twins to model everything from underground infrastructure to heat maps, these tools are becoming central to Dutch urban planning. The fusion of AI with these virtual replicas allows planners to simulate interventions, such as adding green spaces or solar panels, and assess their impact on energy efficiency and climate resilience before implementation. The focus on integrated, sustainable development extends to the construction sector's embrace of a circular economy. National and EU policies are pushing for the reduction of raw material use, which could cut the sector's emissions by nearly 40%. This involves designing buildings as future material banks and implementing strategies like material passports, which aligns with the synergetic approach of deriving multiple benefits from a single planning strategy.