台北地下街Y26出入口改造 為市民大道28處出入口再造計畫之第一步，設計團隊以都市醫生的角色，藉由最少限度地介入， 重新喚起每一出入口的自身故事。 建築量體使用通透的板結構，吸引人群重新連結地下與地下商圈；並將建築內部植入考訪鐵道部百年屋頂，在地化的敘述歷史與現代。
The renovation of Taipei Underground Mall's Y26 Entrance marks the first step in a broader plan to renew the 28 entrances along Civic Boulevard. Rather than replacing what exists, the design team takes on the role of an urban doctor — through minimal intervention, reawakening each entrance's own story. A transparent structural enclosure re-establishes the visual connection between the street and the underground shopping district, improving visibility while encouraging movement between the two levels. Embedded within the structure is a reference to the century-old roof of the Railway Department, localizing a narrative between history and the present.
台北地下街為台灣最早之地下商店街，其歷史意義及生活體驗為當時之先進；可惜隨著時間過去，建築亦如人體一般面臨老化及須治療，地下建築因長年水壓逐漸產生漏水、設備老舊及早期樓梯設計不符現代需求等安全性問題，加上長年下來缺乏整體視覺系統與資訊整合，空間顯得老舊凌亂也成了許多人不願走入的原因。
Originally constructed in the early 1980s, Y26 had gradually become constrained by ageing infrastructure and unclear circulation.
設計團隊以都市醫師的角度切入改造，由結構的補強重新設計出入口的構架到擬定材料與整體色彩計畫，期望藉Y26經驗以最微小尺度重新點亮，透過在地力量的凝聚，逐步更新，重新塑造市民大道兩側之都市景觀。
The redesign addresses these conditions through openness rather than addition. Increased transparency improves orientation, daylight, and the perception of safety, allowing the entrance to once again become an inviting threshold between the city above and the public spaces below.
