This pamphlet focuses on ways to design a building to help regulate the body and support therapeutic approaches. Since trauma lives and works through the body, and the body reacts to physical space before we cognitively process it, the built environment is integral to how one experiences trauma. This document presents a brief primer on the body-space-trauma relationship, organizing principles for trauma-informed architecture, some examples of built work, and narratives that inform what amenities residents and staff may need. The aim is to provide a spatial framework from which to approach trauma-informed architecture.