Alter Contest

The rapid urbanization of modern cities has resulted in densely packed high-rise buildings, leading to environmental and psychological challenges. One of the key issues is the Sky View Factor (SVF), which significantly impacts natural light penetration and visual openness. A low SVF can create a compressed urban environment, reducing ventilation and exacerbating the urban heat island effect. Additionally, the dominance of steel and curtain wall structures has led to a loss of architectural diversity, replacing culturally significant designs with standardized, globally uniform buildings.

Singapore, a global economic hub, is an exemplary case of urban density and rapid modernization. The stark contrast between low-rise traditional shophouses and towering skyscrapers highlights the city's architectural and functional polarization. As Singapore prepares for the 2061 expiration of its water supply agreement with Malaysia, sustainable urban strategies, particularly those focusing on rainwater self-sufficiency, have become a crucial priority.

This journal explores innovative architectural solutions that address urban density, sustainable water management, and human-centered high-rise design. By reimagining building forms and integrating nature-driven technologies, we aim to propose a climate-responsive tower that harmonizes with Singapore’s unique environment.

Urban Density and Psychological Pressure

The intense clustering of skyscrapers in major cities restricts sky visibility, leading to a lower Sky View Factor (SVF). This lack of openness not only reduces natural ventilation and daylight penetration but also creates a feeling of enclosure, potentially causing psychological stress. Studies suggest that overly compact urban environments can lead to a loss of spatial freedom, increasing mental fatigue and discomfort.

To mitigate this, our proposal moves away from rigid, vertical high-rises and instead adopts organic curves inspired by natural forms. This design enhances visual fluidity and spatial openness, creating an urban structure that feels more inviting rather than imposing.

Material Innovation: Moving Beyond Steel and Glass

Traditional architecture was deeply influenced by regional environments, using locally available materials. However, contemporary high-rise buildings are dominated by steel frames and curtain walls, which erase local identity and create monotonous urban landscapes.

Our proposed tower integrates diverse timber materials, reinforcing a warmer, human-centered scale while maintaining sustainability. Timber construction not only reduces the carbon footprint of high-rise buildings but also provides structural resilience and energy efficiency, making it an ideal alternative to conventional materials.

Water Security and Rainwater Utilization

Singapore relies heavily on imported water, desalination, and recycling for its water supply. However, with the 2061 expiration of the Malaysia water agreement, the city faces an urgent need to establish a self-sufficient water management system.

Our architectural solution introduces a rainwater collection and purification system integrated within the building structure. The curved roof acts as a funnel, efficiently channeling rainwater into storage reservoirs. This collected water can then be filtered and distributed throughout the building, reducing reliance on external water sources. By implementing sustainable water practices, the tower enhances urban resilience while addressing Singapore’s water scarcity concerns.

Urban Integration: Sustainable and Walkable Design

Singapore promotes a walkable city model, ensuring pedestrian accessibility even in high-density environments. To enhance this, our design recesses the lower building mass, creating shaded pedestrian pathways that offer a cooler and more comfortable walking experience.

By opening strategic building corners, pedestrian flow is improved, allowing the tower to seamlessly integrate into the existing urban fabric. The inclusion of green spaces and communal areas strengthens social interactions while enhancing environmental sustainability.

Architectural Innovations in Water Management

✅ Curved Roof for Rainwater Collection

The curved roof design maximizes rainwater harvesting, ensuring efficient collection and storage. As Singapore experiences high annual rainfall, utilizing the roof’s expansive surface for sustainable water management significantly reduces urban water dependency.

✅ Angled Facade for Water and Cooling Efficiency

Inspired by tropical plants that naturally collect water, the facade features angled surfaces that direct rainwater into storage systems. Additionally, a water curtain cooling system reduces surface temperatures, improving energy efficiency in Singapore’s hot and humid climate.

✅ Lower Levels Inspired by Root Systems

While the upper structure collects water, the lower levels are designed to gather people. Inspired by plant roots that absorb nutrients, the irregular wooden facade encourages organic pedestrian movement, creating a human-centric space within the city.

Conclusion: A Future-Oriented Urban Model

This proposal aims to redefine high-rise architecture by addressing psychological, environmental, and functional challenges. Through innovative material use, rainwater integration, and human-centered design, we envision a new sustainable urban model for Singapore. As the city prepares for a future without external water dependence, these architectural solutions serve as a blueprint for resilient and adaptable urban development.