A Study on Smart City Financing : A Life-Cycle-Based Typology of Funding and Financing Structures Through Domestic and International Case Studies

Abstract

This study examines smart city financing as a life-cycle process in which capital is raised, repaid, recovered, and reinvested throughout urban development and operation. It conceptualizes the smart city as an integrated urban system comprising land and infrastructure, real estate, energy and environmental facilities, ICT and data infrastructure, and smart services. Using a comparative case-study approach, the study analyzes Songdo International Business District, Sejong 5-1 Living Area, Busan Eco Delta Smart City, Pune, and Masdar City. The analysis focuses on seven dimensions: life-cycle stage, investment object, capital provider, financing instrument, funding source, risk allocation, and capital recovery. The findings show that no single financing structure can be uniformly applied to smart cities because their assets and services differ in publicness, revenue-generating capacity, investment horizon, and risk. High-risk planning and infrastructure stages rely largely on public-sector and developer capital, while private equity, project finance, loans, and bonds become more feasible as predictable cash flows emerge. Sustainable operation further requires stable funding sources for operation, maintenance, and technological renewal. The cases are classified into four types: real-estate-led development finance, public–private SPCs with internal cross-subsidy, municipal blended funding, and public seed capital with asset recycling. The study concludes that sustainable smart city financing requires the coordinated design of funding, financing, risk allocation, capital recovery, and reinvestment across the project life cycle.