Office AT, an architectural design firm, is building a new 4-story steel flexible space office. The first floor has a meeting room; the second floor and mezzanine are office spaces; the top floor is a multipurpose room for exhibitions, sports, and events. The front cantilever extends for column-free parking underneath, supported by steel from the mezzanine. The main staircase, made of folded steel, serves as a social space and offers clear outdoor views, becoming a key architectural feature.