Dilrukshika Ranjan, Chamath Gunasekara, Dakshina Wickramasinghe
student
SLIIT
Sri Lanka
Urban Design and Landscape
The "Green Horizons" project aims to address the rapid, unplanned development in Malabe, Sri Lanka, which has led to significant environmental degradation,… more
Tamer ElSerafi
advisor
Effat University
Saudi Arabia
Dr. Tamer ElSerafi is the Head of the Architecture Department and Director of the Master of Science… more
This project presents a visionary and multidimensional approach to addressing the challenges of rapid urbanization and ecological degradation in Malabe, Sri Lanka. Rooted in a systems-thinking methodology, the design proposes an urban framework that leverages the natural wetland ecosystem to mitigate flooding, improve air and water quality, and support food security—all while enhancing the livability of the urban fabric.
The intervention is structured around four key strategies: wetland restoration, green infrastructure, mixed-use zoning, and socio-cultural integration. Notably, the reintegration of 20% of existing wetlands into the urban grid, combined with an upgraded canal system for transport and livelihood, demonstrates a profound understanding of landscape-led urbanism. The zoning of recreational, commercial, and residential uses in harmony with ecological corridors reflects a mature and climate-responsive design ethic.
The architectural and infrastructural components—including covered parking, passive ventilation, green roofs, and use of solar energy—are thoughtfully embedded in the spatial fabric, rather than appended as technical features. Furthermore, the emphasis on diversity in housing, accessibility to public transport, and pedestrian-oriented design supports social inclusion and long-term resilience.
Overall, this is a well-researched, ecologically intelligent, and socially inclusive urban development model. It sets a high benchmark for sustainable planning in rapidly urbanizing tropical contexts.