Competitions are a significant tool that can be utilized in the formation and improvement of an urban development model that balances both local values and global priorities; however, the implementation of the winning design is also crucial. With this in mind, this paper aims to evaluate competition implementation via a research-driven case-study approach. The case study focuses on the findings from the Urla-Cesme-Karaburun Peninsula National Idea Project Competition, which has a strategic position in the development of Izmir, the third most populous city in Turkey. Asset-based development is the main theme of the winning design, and this competition has become the foreground of the 2014-2023 strategies for the sustainable development of the region. This case study is a step toward decreasing the gap between the organization of a competition and the implementation of its winning design. It discusses the effects of the Cesme Peninsula competition project -from conception to implementation - on the region within the larger perspective of the research question "how should a settlement develop in the future?" The Cesme Peninsula competition played a significant role in the peninsula's search for future development strategies, culminating in a new strategic plan for the region.