京都傳統京町屋的建築型態中，職住合一是獨特的住宅樣式。大雲的建築型態為京町屋中「商家．一列三室型」種類，此類型是京都最道地的民宅，也是常民最真實的日常生活型態。
最初面臨殘破不堪的衛浴區，以增建的手法，規劃出兩套獨立廁所，既可以單獨又可與獨立廁所融合成一套的浴室，新增建的衛浴區整體與舊棟的兩進（兩層）三空間的空間型態呼應在一起。而在拆除工程後，整棟才得以檢查是否有補強與修復的需要。第一項變動是將京都傳統燒炭煮水的空間，重新轉化成餐廳，把高架四十三公分高的榻榻米空間改成與地面同高的暖房木地板，以及將從居間起階的陡峭樓梯（約深十八公分，高二十八公分），改至由客廳（奥、座敷）起階。
本案首次與小林一工務店合作，大工師傅在此小京町屋內修復結構柱體的手藝上，運用了修復大阪城入口城門（大手門）的功夫。為保存老屋的痕跡，原有建物的部分採偏黑色的咖啡色護木漆，修復的部分以焦糖咖啡色系的護木漆呈現。
小庭園的規模尺度元素採寺廟規格的規劃，而非一般居家住宅的元素。此庭園由枯山水的石庭為主基調，選定四種不同季節開花的樹種，而石庭的樣式採自然石中延段、板石、切石、延石的變化來設計，庭師彷彿將京都大德寺的庭園濃縮至大雲的小庭園之中。
安靜的空間、行動的人、有戲的物件。從空間延伸出空間，一條線性帶狀的串連，人在空間裡陶醉，時間看似會消失，其實共存與空間之中，帶出老屋因人的存在而重新有了新的生命（時間軸）。創造每個角落單獨誕生出的風景與氛圍，彼此又被老屋的存在包覆在一起，讓人用身體去體驗及記憶空間與時間的存在。
The distinct housing typology, “Kyo-machiya” in Kyoto, combines living and working under one roof. Casa OGUMO’s layout of “shophouse with three rooms in a row” is the most typical among Kyo-machiyas and a true manifestation of the local lifestyle.
To begin with, Improvement through an addition is the direct approach taken for the dilapidated bathroom area, the entire area is re-planned to provide two separate washrooms that may be either used independently or in conjunction as one full-sized bathroom. The overall configuration of the newly added bath area echoes the spatial typology of the existing building, with its three aligned spaces and two-storied structure. In addition, the structure of the existing building could only be examined for necessary reinforcement and restoration after it has been dismantled. The first major move was converting the central space traditionally used to burn charcoal and boil water into a dining space. The original tatami elevated 43cm high was modified into a heated wooden floor at grade level, and the steep staircase (with 18cm tread depth and 28cm riser height) was relocated to the living room to serve as the main vertical access.
In this project, it was the first time that I worked with Kobayashi Ichi Constructions from Japan. Since the master builder mentioned he used to erect temples and shrines, we applied the technique he had employed to restore the Ote-Mon Gate at Osaka Castle to restore the structural columns in this project. In order to preserve the vestige of the old house, blackish brown protective coating was chosen for the existing wooden structure and caramel brown for the restored portions.
The small garden was undertaken at the same scale and detail as a temple rather than a regular house. A dry-landscape rock garden anchors the garden. Four species, each flowering in a different season, were selected. The patterning of the rock garden graduates from “nobe-dan”, slate, cut stone to “nobe-ishi”. It is as if the same scale and intricacy of the garden at Kyoto’s Daitoku-ji Temple has been condensed at Casa OGUMO.
Quiet space, actors, dramatic objects. Space flows into space with linear linkage; people revel in the space; time appears to be disappearing and yet co-exists in the space, underlining the new life (timeline) endowed to the old house blessed with the existence of people. Every corner is sculpted so as to independently give rise to a landscape and atmosphere; we seem to be engulfed once again by the house’s existence, as we experience and remember, with our bodies, the existence of space and time.