Erbil’s Urban Transformation: Green Infrastructure and Innovation in a Medium-Sized City Facing Global Challenges

Medium-sized cities increasingly play a central role in global urbanisation dynamics. While megacities dominate academic and policy discourse, rapidly expanding medium-sized cities face acute challenges. These include land conversion, infrastructure strain, climate stress, and governance transition. Erbil, the capital of the Kurdistan Region of Iraq, is an example of such transformation. In the past two decades, Erbil’s demographic growth and spatial expansion have accelerated. The city has expanded beyond historic ring roads, driven by political stabilisation, economic concentration, and internal migration. This growth has put pressure on peri-urban agricultural land, environmental systems, and infrastructure. In response, Erbil’s updated master planning framework introduces growth boundaries, zoning reforms, density regulation, and environmental overlay mechanisms to regulate expansion and enhance environmental integration. Within this restructuring process, green infrastructure—including Sami Abdulrahman Park and the Orbital Green Belt Project—has emerged as a central planning component operating at multiple spatial scales. Simultaneously, major water infrastructure investments expand supply reliability and support the long-term feasibility of large-scale vegetation systems in a semi-arid climate context. This paper examines if green infrastructure in Erbil functions only as environmental enhancement or also as a spatial governance instrument integrated with growth management strategies. By using planning documentation, project descriptions, and spatial development interpretation, the study places Erbil in broader discussions of resilience, governance transition, and environmental planning. The case contributes to debates on how transitional governance can embed environmental strategies into regulatory planning frameworks.