The 15-minute city is an ideal that has taken hold in many places around the world. The new urban planning concept is increasingly being discussed and implemented. Rome is one of the cities where the concept has gained a strong foothold. In spring 2023, an urban development project called 15 municipalities, 15 projects for the city in 15 minutes was launched in Rome. The project aims to decentralize the city centre to even out the unevenly distributed resources in the city to reduce car use. The concept aims to create self-sufficient neighborhoods where residents' destinations can be reached within short walking and cycling distances. Our bachelor thesis examines the implementation of the 15-minute city in the Villaggio Olimpico district of Rome. The aim of the work is to examine the strategies used by officials to promote the values referred to in the concept and the challenges faced by the Villaggio Olimpico urban development project. The area's modernist and dysfunctional built environment will be transformed in order to enhance and ensure the quality of life of its citizens. The project includes measures to promote transport efficiency and the activation of dilapidated public activity spaces to bring more life and activity to the area. For the implementation of the study, empirical data has been collected through document, interview and field studies. The theoretical framework consists of urban critic Jane Jacobs, urban planning icon Jan Gehl, architect Robert Lavelid and urban planning researcher Moa Tunström and their theories on what is required for successful planning for sustainable cities. The results of the study show that the concept is used as a strategic tool to counteract the car and the transport habits of the population to promote walking, cycling and public transport. Villaggio Olimpico plans to apply the values of the 15-minute city by activating and restoring degraded green and public spaces to create an attractive urban environment, as well as infrastructure investments that promote green transport choices.