此建地位於北海道札幌市的中心部，從北海道廳往北一條通延伸的軸線上。本計畫是預計將建造於1926年的道立文書館別館（舊北海道廳立圖書館）之一部份保存下來，並改建成當地極具代表性的甜點製造商的店鋪。
除了對於這個融入札幌地標的道廳周邊景觀一隅、且面向大馬路的建築物外牆及樓梯間進行了補強及保存外，其餘部份則是依照構造及機能需求替換成新建物。讓這個對於市民來說長久以來抱有熟悉感的舊建築，不單只在「外觀」，甚至在「內部」 的氛圍皆得以獲得傳承，並且以能夠提供當地居民作為「聚會沙龍」的開放式店鋪空間為目標。
由配置於建築物長邊上的兩個成對核心建構所形成的全新店鋪空間，是一個讓三層樓高的舊牆保持外露的大型挑高空間。作為咖啡廳使用的二樓，樓板像是浮在空中一般橫跨兩端。由直徑一百的柱子所支撐的白色連續交叉拱頂天花板，不僅勾勒出猶如纖細甜點的意象，在透過舊圖書館的原建材窗戶所灑下的自然光映照下，與外露的磚牆在素材上呈現了緊迫的新舊對比。咖啡廳空間的東西兩端牆壁，則配有一整面延伸至挑高天花板的壁面書架，陳列著北海道歷史及甜點的各式書籍。
二樓的咖啡廳，同時也被規劃為可以舉辦小型音樂會等活動的多用途空間。期望從這個具有北海道歷史氣息的街角一隅，可以培育出發展地區未來的茁壯之力。
Kitakaro Sapporo Flagship Store
The project site is located at the center of Sapporo City, Hokkaido along an axis that stretches between Kita 1-jo-Miyanosawa-dori Avenue to Hokkaido Government Hall. This project preserves a portion of the former Hokkaido Prefectural Library completed in 1926 and transforms it into a retail shop for a popular dessert manufacturer.
The street-facing facade, an integral part of the streetscape around the landmark Government Hall, has been reinforced and preserved along with the stairway inside the building, while all the rest have been replaced with new components based on structural and functional requirements. For the local residents, both the external appearance and the internal ambience of this familiar old edifice have been kept intact, while the open shop space is intended as a sort of "salon" to host local gatherings.
The brand new shop space is formed by a pair of core structures along the long axis of the building, and the original three-story wall, its surface left exposed, anchors the large space endowed with extra height. The floor slab of the second-floor cafe spans across the two ends of the building as if floating in midair. The ceiling, consisting of white uninterrupted cross vaults supported by columns at a diameter of 100 mm, alludes to the delicate desserts offered by the shop and, illuminated by natural light flooding the original library windows, forms a stark contrast of new and old against the exposed brick wall. The cafe is flanked by walls in the form of floor-to-ceiling bookshelves at the east and west ends, where a wide selection of books on Hokkaido's history and desserts are displayed.
The second-floor cafe is also designed as a multi-functional space where events such as small-scale concerts may be held, with a view to make this historical corner of Hokkaido a leaven for incubating regional strength.