A process that balances among economic, environmental and social perspective on urban area is prominently known as “Sustainable urbanization”. There is an expert system required to create this balance. Alternatively, to balance various aspects, urban planning is a conventional tool adapted. To achieve sustainability, urban planning has a key role in providing the balance. In significantly represented portion of developing countries, City Development Strategies (CDS) is an emerging strategic urban planning approach to maintain sustainability. This achievement varies at different level based on various definitions of CDS. By choosing some specific definitions of CDS by international agencies, this paper studies and compares the accomplishment.