Maruhiro Office “Ouchi” by DDAA

Office design for a Hasami pottery brand in an 86-year-old Japanese house

Project Specs


感谢 DDAA 对gooood的分享 。
Appreciation towards DDAA for providing the following description:


The office of the Hasami pottery brand Maruhiro is a project to renovate an 86-year-old Japanese house located just behind “Hiroppa”, a complex project including a park and directly-managed store currently under planning at DDAA.

▼项目一瞥,preview © Kenta Hasegawa


Hasami pottery is a local industry in Hasami, Nagasaki Prefecture. By adding the park a function of directly-managed store, Hiroppa is planned as a plaza for not only customers but also local people. In an old house adjacent to the park, a showroom, a kitchen for making lunch boxes to eat in the park, and residence space for collaboration with artists were created in addition to office functions.

▼建筑外观,exterior view © Kenta Hasegawa



As the future is unpredictable, it is very important to be flexible in terms of organization management. Therefore, DDAA proposed what they could do with half of the original budget. The goal was to boldly change the impression of the existing one with as little modification as possible and also to create a space that is not fixed in function or concept.

Japanese Wooden houses are designed to allow for flexible and repeated expansion and renovation in the first place. It can be said that one of the characteristics of Japanese housing is that it does not peak at the time of completion, but can gradually change its appearance according to the situation. This Japanese house was no exception and the kitchen, warehouse, entrance, and so on had been extended.

▼玄关,entrance hall © Kenta Hasegawa


DDAA proposed to make as few changes as possible to the existing conditions and to remove the floor from the room where the tatami mats were laid. The floor was removed and concrete was poured, leaving the magnificent stone plinth foundation that appeared. Along with the concrete floor, the legs of the desk at the height of the original floor were provided also in concrete.

▼榻榻米房间的地板被移除并使用混凝土浇筑 © Kenta Hasegawa
the floor was removed from the tatami room and concrete was poured

▼办公空间,office area © Kenta Hasegawa

▼厚重的石砌基座显露出来,the magnificent stone plinth foundation appeared © Kenta Hasegawa

▼办公区细节,office area detailed view © Kenta Hasegawa


Using a chair often cause damage to the tatami, but removing the tatami solved the problem, and at the same time, the ceiling height was raised as the floor was lowered. All the paper and glass were removed from the yukimi-shoji screens (lattice frame with translucent paper on top and glass on the lower part so that you could look out at the garden when sitting on tatami mats). Since the floor has been lowered, the garden is at eye level when sitting on a chair. The tokonoma (Japanese alcove, which is often decorated with hanging scrolls and other art piece), which came to a relatively high position, also suits the gaze of modern life, where we often sit in chairs. A rolling round mirrored door that also serves as a sign for the entrance was installed on the existing shoji frame.

the rolling round mirrored door (gif.) © Kenta Hasegawa

the alcove came to a relatively high position © Kenta Hasegawa

▼从圆形门望向办公桌,view from the round door © Kenta Hasegawa

▼办公桌细节,table details © Kenta Hasegawa


On the second floor, tatami mats were replaced with wooden boards to create a residence space for artists. The wall below the nageshi (decorative material that connects columns horizontally) is covered with the same lauan plywood as the floor, and no additional work has been done above that.

▼二层居住空间,residence on the second floor © Kenta Hasegawa © Kenta Hasegawa

▼旧榻榻米被替换为木地板,tatami mats were replaced with wooden boards © Kenta Hasegawa

▼室内细节,interior detailed view © Kenta Hasegawa


By slightly changing its relationship, the original meaning can be altered. We believe that this is an effective way to utilize existing stock, such as vacant houses. After completion, plans to use it not only as an office, but also as a tea shop adjacent to the park, a pop-up store, and a rental space have immediately surfaced.

▼二层走廊,corridor © Kenta Hasegawa

▼起居空间,living area © Kenta Hasegawa

▼室内细节,details © Kenta Hasegawa

Client: Maruhiro inc.
Location: Hasami town, Nagasaki
Usage: Office, Showroom, Residence, Retail store
Architects: DDAA
Project Team: Daisuke Motogi / Kazuya Sumida
Construction: KAMIYAMA
Furniture production: : Studio arche <>
Structure: Wooden (Existing)
Total floor area: 408.24m²
Date of completion: March / 2021
Photo: Kenta Hasegawa


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