The Rock Creek House is an adaptive re-use project involving a 1920s brick structure that was originally composed of two floors, with a basement and attic. This adaptation makes use of the robustness of the existing structure to double the size of the house, while expanding its functions into the landscape. While the northern street façade remains relatively intact – formal, insular, andcomposed – the southern exposure to Rock Creek has been made more generous. The most salient spatial intervention is the introduction of two multi-height spaces. The first connects the entry level down to the garden level. The second vertical space connects the entry with the former attic, now a play loft capped by a skylight. With these two interventions, the once separate realms of storage, bedrooms, work areas, and living areas have become seamlessly interlinked.