The Climate Pavilion Schwerte forms the central venue within the newly completed Climate Garden Schwerte, developed in the context of the International Garden Exhibition (IGA) Ruhr Metropolitan Region 2027. This timber structure follows the idea of a “House of the Seasons”—a building that offers space for learning and exchange throughout the year: a shaded place of education in summer; a market hall and welcoming setting for celebrations in winter. The use of locally sourced timber affected by bark‑beetle infestation for the façade, and untreated solid wood for the structural frame, addresses questions of resource use, spatial atmosphere and user acceptance. The glass façade,based on greenhouse construction, opens generous connections between inside and out through large sliding doors. All timber and metal surfaces are left untreated, allowing their natural patina to evolve over time – a change that is both visible and intentionally embraced. A high degree of prefabrication of timber frame and cassette elements in the walls and roof, exposed building services, rainwater collection via a cistern for toilet flushing and plant irrigation, and a cooperatively managed photovoltaic system round off a concept devoted to sufficiency, resilience and contemporary architectural simplicity.