Circular Blockline proposes an adaptive reuse strategy for the existing post-war tower at 1100 Courtland Avenue. This project explores the ways in which the existing housing stock present in Kitchener can be improved and enhanced in order to create more affordable and equitable housing. Drawing inspiration from Lacaton & Vassal’s transformation of 530 dwellings in Bordeaux, the approach to the existing building was to create a mass timber layer wrapping around the existing concrete structure. This would then extend the units outwards, increasing the amount of bedrooms each unit could hold, as well as giving each unit a generous balcony/semi conditioned space. A second tower was then added, made out of mass timber with a concrete core. Program within the building focuses on creating circular dialogues between industries in the community, allowing for almost closed life cycles of materials. For example, the large greenhouse on the top would create food sovereignty for the building’s residents, while the compost would be biomass for the gasification and energy production in the basement of the building.