What is Alvar Aalto (1898-1976)

While the threat of tuberculosis, one of the old and important epidemic diseases, could not be completely eradicated, at the end of 2019, the world was faced with a new epidemic, COVID-19. Epidemic diseases such as tuberculosis and COVID-19 bring restrictions and limitations to daily life. It also revealed the need to explore what criteria might be in designing healthy architectural spaces and what kind of future planning-design-production issues shall be rethought. In this context, the problem question of the study is discovered: What might be the new possible design principles in shaping new buildings due to life changes during or after the pandemic process? In order to search for the answer to this question, the Paimio Sanatorium complex in Finland, which constitutes the best example of the reflection of epidemic diseases to space, was examined on-site by the author. In this chapter, the author aims to elucidate how the architectural design features of the Sanatorium buildings may be effective in guiding the architecture during and post COVID-19 pandemic.