Theatre architecture is an academic field of study investigating the design, construction, and spatial organization of buildings and environments specifically purposed for theatrical performance. It examines the historical evolution, functional requirements, aesthetic principles, technological integration, and socio-cultural contexts that shape these spaces across different eras and cultures. This interdisciplinary concept analyzes how the physical structure influences performance practices, audience experience, and the broader cultural role of theatre, thereby providing critical insight into the dynamic relationship between built form and ephemeral art.