id22: Institute for Creative Sustainability is a non-profit, civil society-based organisation based in Berlin, Germany. Founded with a focus on promoting sustainable urban development and innovative housing, id22 operates at the intersection of environmental protection, cultural engagement, and social inclusivity.

The organisation's mission is multifaceted, encompassing the promotion of arts, culture, science, and research within regional, international, and transdisciplinary networks. id22 develops and monitors innovative projects, creates educational concepts that integrate environmental, cultural, and social aspects, and organises events that foster public engagement and dialogue.

Key projects include EXPERIMENTDAYS, a platform for community housing projects and creative sustainability initiatives, and Creative Sustainability Tours, which offer guided explorations of Berlin's local initiatives in DIY urbanism, cooperative housing, community gardens, and ecological architecture. Additionally, id22 manages the WOHNPORTAL Berlin, a platform for housing projects and building communities.

Through its activities, id22 aims to facilitate knowledge transfer and exchange on sustainability topics, both locally and across Europe. The organisation collaborates with various stakeholders from administration, politics, economy, and culture, reflecting its commitment to interdisciplinary and multinational engagement. By fostering creative and sustainable urban development, id22 seeks to inspire and empower communities to shape their urban environments.