| Summary: | Housing renovation is a common concern to owners, tenants and to society at large. In addition to the high economic costs, the implementation of housing renovation usually have a long-term impact on the society and the built environment. This is a theoretical paper that develops a system model for understanding sustainable housing renovation as a system phenomenon which has multiple sustainability goals, complicated dynamic processes, diverse actors, and a sophisticated institutional environment. It identifies the key challenges of a sustainable housing renovation system, namely the conflicting sustainability goals and the conflicting stakeholder interests. To address these two challenges, the paper suggests an innovation approach in which the process of innovation (linear versus organic) and the typology of innovation (product versus process and business versus social) toward sustainable housing renovation are discussed.
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