My project explores the potential of the greenhouse as a primary domestic space, expanding its role beyond its conventional integration in dwellings as a mere extension. It is a deepening of the theoretical statement Living in the Sunlight. Exploring Greenhouses as Domestic Spaces, which investigated the interest of using residential greenhouses and how they can be effectively integrated into dwellings to ensure optimal functionality. The project integrates key findings from the theoretical statement and considers the greenhouse as a responsive living environment—one that reacts to climatic conditions and relies on ongoing human gestures such as opening, adjusting, or moving. These actions enable the place to remain inhabitable while fostering forms of collective appropriation, shaping a way of living in which everyday interactions support both spatial transformation and social exchange within the coliving house. The domestic space extends from the traditional insulated core to the conditioned greenhouse and finally to the exterior. This device thus becomes an adaptive form of habitation, capable of supporting multiple living scenarios, accommodating diverse spatial values, and integrating climatic, social, and usage variability within the dwelling.