In recent years, finding affordable housing has been a notable challenge for the residents of historic cities in Europe. This paper aims to develop a novel vision for improving housing policies in the post-COVID time to moderate the long-lasting issue of affordable housing in historic cities. The research was developed based on the findings of the Atlas World Heritage in 2019. In this project, five European Art Cities, namely Florence, Edinburgh, Bordeaux, Porto, and Santiago de Compostela, discussed their common management challenges through the shared learning method. Focusing on the case study of Florence and using a mixed method, we collected data through the municipality of Florence, map analysis, and distribution of a questionnaire among the city residents. Then, we used inductive reasoning to explain how reforming housing policies in the post-COVID time could moderate the long-lasting issue of affordable housing in historic cities. The findings suggest that housing policies need to be supported simultaneously at both international and local levels. From the international perspective, associated cultural heritage organizations, like United Nations Educational, Scientific and Cultural Organization (UNESCO) and its advisory bodies and the World Tourism Organization (UNWTO), need to develop restriction policies that manage tourism flows in historic cities like increasing airline taxation. At the local level, Florence needs decisive housing policies that ban the growth of illegal tourist accommodations in the city. However, the privilege of establishing new hotels can be awarded in suburban or rural areas to support sustainable tourism goals.