海角视频

By 2080, up to 85鈥�90% of the world鈥檚 population is expected to live in cities, according to . As urbanisation accelerates, cities are increasingly facing complex environmental and social challenges, from air pollution and urban heat islands to water scarcity, habitat loss and social inequality.

In response, nature-based solutions, offering a sustainable alternative to traditional 鈥済rey鈥� systems in urban environments, are emerging as a powerful tool to address these issues holistically. Green-Blue Infrastructure (GBI) refers to the integrated network of natural and semi-natural areas 鈥� such as parks, rivers, wetlands and green roofs 鈥� that deliver ecosystem services and enhance urban resilience against climate risks like flooding and heat stress.

By integrating green (land) and blue (water) spaces urban environments can mitigate the impacts of climate change, reduce greenhouse gas emissions and unlock a wide range of social, economic and ecological benefits. The multifunctionality of nature-based solutions make them particularly valuable in shaping resilient, futureproof cities.

While the concept is widely discussed, its practical application varies across Europe. At 海角视频, we believe that unlocking the full value of nature-based solutions requires a collaborative, interdisciplinary approach 鈥� one that bridges knowledge gaps and embeds sustainability at the heart of urban development.

The following case studies illustrate how different cities integrate GBI into their planning frameworks.

Reimagining post-industrial space through nature-based design

According to the Climate Change Adaptation Strategy for Warsaw 2030鈥�2050, the city will face significant challenges in the coming decades. Rising average temperatures, more frequent tropical nights, and increased storm intensity combined with prolonged droughts will amplify the urban heat island effect, strain water resources, and heighten flood risks during extreme rainfall events. Addressing these issues requires innovative, nature-based solutions embedded in urban planning.

F.S.O. Park exemplifies this approach. The visionary transformation of a former factory site into a multifunctional urban landscape integrates blue-green infrastructure to strengthen climate resilience, enhance biodiversity, and create inclusive public spaces. Features such as rainwater retention systems, green corridors, and recreational zones demonstrate how masterplanning can mitigate flood risk, improve connectivity, and elevate quality of life in dense urban environments.

Our multidisciplinary team at 海角视频 supported the masterplan with strategies promoting low-carbon, energy-efficient development aligned with EU Taxonomy objectives. A key focus was the integration of blue-green infrastructure, including a sewage and rainwater retention system designed to reduce flash flood risk and lower domestic water consumption through recycling. The plan also prioritises green community spaces, introducing a new 10-hectare park and extensive greenery woven into and around buildings to support physical and mental wellbeing.

To achieve these goals, the masterplan incorporates advanced water recovery and reuse systems. Greywater recycling will be implemented through local treatment stations designed to recover water exclusively from showers and washbasins in residential units. After undergoing physical and biological treatment combined with disinfection, the reclaimed water will be reused for toilet flushing. This represents a significant enhancement to the residential standard, as the investor is providing each apartment with a third dedicated pipe for greywater, in addition to the traditional hot鈥� and cold鈥憌ater systems. Such solutions are typically found in office buildings and are rarely introduced in housing. Overall, this approach is expected to reduce potable鈥憌ater consumption in residential units by up to 40%.

Rainwater harvesting will complement this system. Water collected from building roofs and underground garage decks will be stored in underground retention tanks and subjected to multi-stage filtration. The recovered water will primarily be used to maintain water levels in the retention pond, irrigate private gardens excluding spray systems due to the risk of mist particles bypassing filtration, and support cleaning operations. In cases where the system reaches full capacity, excess water will be redirected to toilet-flushing installations.

Surface runoff will be managed locally through a combination of blue-green infrastructure elements, including rain gardens, infiltration basins, bioretention swales, a central retention pond, and underground infiltration crates. These solutions will reduce flood risk, enhance groundwater recharge, and improve ecological connectivity across the site.

Integrating water-sensitive strategies into urban design

Towarowa22 is a new superblock designed by JEMS Architekci and developed by AFI, Echo Investment and Archicom in the business centre of Warsaw. 6.5-hectare mixed-use development features office, residential, ground floor retail, food & beverage as well as leisure areas. The centrepiece of the former printing house site will be a new multi-layer public garden around the restored Dom S艂owa Polskiego pavilion. The human-centred project respects the history and context of its location while introducing current trends in inclusive urban planning.

Towarowa Gardens 鈥� a sequence of linked green areas 鈥� will contribute to improving the surrounding microclimate and reduce the urban heat island effect. It is designed to bring together sustainability, climate resilience and community wellbeing. The project integrates blue-green infrastructure to create a multifunctional public space that supports both environmental goals and everyday urban life. Through thoughtful planning, the garden aims to demonstrate how nature-based solutions can enhance the quality of life in dense city environments.

To support climate adaptation, the project aligns with the EU Taxonomy and BREEAM Communities standards. Our team conducted a detailed climate risk and exposure assessment across the full lifecycle of the development, implementing strategies to mitigate those risks. One of the key challenges was the limited biologically active area within a highly built-up site, which accelerates stormwater runoff and increases the risk of local flooding. To address this, the design integrates the central garden as a multifunctional green space that enhances infiltration and slows down water flow. A crucial part of the strategy is securing an easement that allows the investor to discharge clean rainwater from the development site onto municipal land. This arrangement brings mutual benefits: instead of sending uncontaminated rainwater into the combined sewer system, the investor supplies the gardens with a valuable source of irrigation water, supporting the health and resilience of the city鈥檚 green infrastructure.

Planning for the future means planning for extremes. The drainage system was designed using local rainfall models based on data from the Polish Atlas of Rainfall Intensity (PANDA), accounting for climate change trends.  A key challenge on this project was the very limited amount of biologically active area: the site is densely built鈥憉p, which accelerates runoff and increases the risk of local flooding. This constraint led to the idea of using the adjacent garden as an integral part of the water strategy. As a result, two complementary water鈥憁anagement approaches were developed. The first focuses on capturing and reusing rainwater through systems collecting runoff from rooftops and pedestrian areas. The second reduces the demand for potable water inside buildings by using efficient fixtures and low-flow technologies.

Site-wide rainwater strategy

At the scale of the entire Towarowa22 development, a comprehensive rainwater management strategy was established to ensure climate resilience and sustainable water use. Required detention and retention capacities were defined for the site, and a catalogue of blue-green infrastructure solutions was developed to guide implementation. The strategy includes methods for draining rooftops and public spaces, supported by a network of blue infrastructure elements designed to capture, slow, and reuse rainwater. Possibilities for greywater reuse from buildings were also analysed, alongside broader measures to reduce water consumption in office and rental residential units.  As part of this assessment, specific water鈥慸emand benchmarks were established and compared with standard values to define performance targets. Importantly the use of greywater systems in residential units was identified as a non鈥憇tandard solution that exceeds typical market practice. This elevated specification reflects the project鈥檚 ambition to significantly reduce potable鈥憌ater consumption beyond conventional design norms.

Conceptual diagrams were prepared to illustrate water supply, wastewater discharge, and rainwater reuse systems, including flows of recovered water such as greywater and stormwater. Catchment maps were also developed to support drainage planning. The core principle of the strategy is full on-site retention of rainwater, supported by blue-green infrastructure objects (OBZI). This approach ensures that rainwater is used in 100% 鈥� primarily as greywater for irrigation and toilet flushing 鈥� so nothing is wasted as discharge to the municipal sewer under normal conditions. The design is based on observed rainfall data from the Polish Atlas of Rainfall Intensity (PANDA), ensuring that the system responds to local conditions and future climate trends. Two drainage scenarios were modelled: one with overflow directed to the adjacent garden, and another with overflow routed to the municipal network. Overflow occurs only during extreme rainfall events (50 or 100-year storms), and strict coordination with the city is required due to easement considerations.

Embedding green-blue infrastructure in urban masterplanning

Climate-adaptive urban infrastructure is increasingly recognised as a key element in shaping resilient and liveable cities. It supports masterplanning by influencing spatial layouts, transport networks and the multifunctional use of public spaces 鈥� whether social, recreational or ecological. These nature-based solutions help deliver core planning goals such as climate adaptation, biodiversity enhancement and improved quality of life.

Green-blue infrastructure provides a systemic response to these threats. Urban greenery 鈥� including parks, green roofs, and tree-lined streets and vegetated structures integrated directly into infrastructure 鈥� helps cool the city, reduce heat stress, and improve air quality. At the same time, blue elements such as retention basins, rain gardens, and permeable surfaces mitigate flooding and enable water reuse, reducing pressure on municipal systems. Together, these solutions create a buffer against climate extremes while enhancing biodiversity and social wellbeing.

As demonstrated in projects like SAP Garden, ecological features can be seamlessly embedded into built infrastructure, turning technical systems into landscape鈥慸riven, multifunctional assets that serve both environmental performance and public experience. The 鈥榞reen鈥� roof of the SAP Garden is designed to sit seamlessly within the landscape of Munich鈥檚 Olympic Park, creating a natural continuation of its iconic topography. A carefully engineered build鈥憉p supports this visual harmony: a 60鈥慶entimetre layer of heavy soil provides the growing medium for robust planting, while beneath it, varying depths of lightweight insulation are shaped to form the roof鈥檚 gentle contours. From above, this sophisticated piece of engineering reads simply as an inviting stretch of green, subtly disguising the complex structural and environmental performance it delivers.

Strategic integration at city scale

Embedding green-blue infrastructure in masterplanning requires a strategic framework that aligns with local climate adaptation goals. Key actions include:

• Mapping climate risks (heat, drought, flooding) and prioritising interventions in vulnerable districts.
• Designing multifunctional public spaces that combine recreation with water retention and cooling functions.
• Implementing water-sensitive urban design principles across all new developments, supported by data-driven rainfall models (e.g., PANDA).
• Coordinating with municipal policies to ensure full on-site rainwater retention and reuse, reducing reliance on grey infrastructure.
• Leveraging EU Taxonomy and BREEAM standards to guide sustainable investment and performance monitoring.

Green-blue infrastructure is not an optional aesthetic feature 鈥� it is a critical resilience tool for European Cities. By integrating nature-based solutions into masterplans today, we can safeguard urban environments against the impacts of climate change, improve quality of life, and create cities that are not only functional but future-ready. The challenge lies in moving from isolated projects to a city-wide strategy, where every street, park, and building contributes to a resilient urban ecosystem.