Spark Beijing Office is a minimalist house located in Dongcheng, China, designed by Spark Architects. An annex glass box had been added to second floor of the existing building allowing for the exterior brick façade to be experienced as an interior space. The space is loosely zoned into a main work area, kitchen and gathering space, a large meeting room area, a model making room and smaller meeting room. Demolishing the window up stands of the existing brick façade towards the glass box gave way to a much desired permeability of the space.