To address the accessibility challenges within the Hart House Theatre, our team developed three key solutions targeting the most critical problem areas: wheelchair seating, back aisles, and stage access. For wheelchair seating, we designed a foldable seating system that improves sightlines and allows flexible accommodation for different audience needs. To mitigate the steep back aisles, the layout was redesigned to reduce the slope and improve safety for individuals with mobility aids while maintaining the theatre’s historic structure. Finally, to resolve the lack of accessible stage access, a portable stage lift system was proposed, enabling performers and presenters with mobility impairments to independently reach the stage. Collectively, these solutions enhance inclusivity, safety, and comfort while preserving the architectural character of the theatre.