The A11 Office Building is located at the intersection of two contrasting urban structures— a grid-based development to the north and an organic, nature-preserved landscape to the south. Positioned at this meeting point, the design reveals the natural form of the site, acting as an intermediary between the two environments while organizing spatial transitions through an abstract platonic geometry.

The building's layout is based on the visually striking triangular form, with varying sizes of interconnected triangles shaping a space where nature and humanity converge. The inclined southern face, angled at 25.5° to optimize solar exposure, features a horizontally cut rectangular frame on the rooftop. This frame, set against a white façade, captures the silhouette of Hallasan, embedding the regional identity within the architecture.

Four stacked triangular volumes navigate zoning regulations by carving out dynamic spaces and adjusting heights, transforming them into architectural devices that foster human interaction. Despite its geometric simplicity, volumetric variations create a layered spatial experience, offering a diverse sequence of spaces that define the architectural language of the A11 Office Building.