In early 2011, the Municipality of District 12 of Tehran—which encompasses the historical center of the city—decided to replace the asphalt of its main streets with stone paving and immediately began demolishing the existing road surfaces. This move sparked negative reactions from the public, shopkeepers, institutions, and governmental organizations. In response to the mayor’s request to resolve the crisis, a simultaneous process of study, design, and implementation began on four streets, eventually expanding to more areas and continuing around the clock. The regeneration plan for these streets was inspired by the “Garden–Bazaar” concept, rooted in the district’s historical legacy. Emphasizing the reconciliation of public and economic spaces with Iranian-style nature-based design, the plan was widely welcomed and ultimately approved. One of the project’s most significant achievements was gaining the trust and close cooperation of 36 institutions, organizations, executive bodies, trade unions, ministries, and citizens—many of whom had initially opposed the project but changed their stance after becoming familiar with its concept and content. In a notable example, one ministry, for the first time in its history of engagement with the municipality, opened up its enclosed compound and handed it over for integration into the project. According to a citizen survey, this was ranked the most successful urban project. Among its key outcomes was the creation of a suitable foundation for the World Heritage nomination of the Golestan Palace Complex. The newspaper Hamshahri published an eight-part series introducing the project’s ideas and positive results. The streets and public spaces redesigned in this initiative include: Naser Khosrow, Bab Homayoun, Davar, Soor-e-Esrafil, 15 Khordad, 15 Khordad Square, Little Davar, Mehran, Berlin Street, and the courtyard of the Ministry of Finance. With the change of district mayor, several components intended to complete the project were never implemented—such as linking the existing qanat water to the open streams for continuous flow, installing the statue of Qa'em Maqam Farahani in Golestan Palace Square, and the statue of Amir Kabir in front of Dar ul-Funun School. * In Section 8 (The Sustainable Development Approach), additional data from this plan are presented. ** In the Publications section, a summary report of this project is presented.