项目是对建筑综合体内的办公空间进行局部改造，包括工作坊、办公室和现代画廊空间。建筑师在现场驻扎了3个月，设计并建造完成了这个项目。

A partial renovation of the office area within a building complex that hosts a workshop space, an office and a contemporary art gallery. The project was completed after designs and constructions made during three months of the architect’s on-site residency.

▼办公空间概览，interior view of the office

▼入口空间，entrance

现有窗户的尺寸为2米X2.5米，这里是来访者进入空间后首先看到的地方，但是窗外仅能够看到临近住宅，景色匮乏。因此，建筑师首先需要需要改造这扇窗户来重新诠释新的办公空间。建筑师的想法是放弃使用这扇没有任何景观的窗户，转为映射室内空间的景象。2米长的平面镜子按照doma（连接入口和室外的地面）尺寸来制作，沿着混凝土围栏的跨度，安装在窗户的背后。

The existing window with the dimensions of 2 by 2.5 meters – the first sight for visitors as they enter the space – had a barren view of an adjacent house. It was clear at the first glance that changing this window would determine the nature of the new space. The idea was to abandon the use of this window that had no view: Instead, to reflect views of the interior space. The 2-meter-long plate of mirror was prepared after the dimensions of doma (an earth floor connecting the entrance and the outside), and installed behind the window along the span of the concrete fence.

▼原有窗户转变为映射室内景象的区域，the original window becomes a place to reflect views of the interior space

▼2米长的平面镜子沿着混凝土围栏的跨度，安装在窗户的背后，the 2-meter-long plate of mirror was installed behind the window along the span of the concrete fence

镜子不仅反射着室内空间，也反射着相邻的墙面和周边的环境，从不同的角度展示着建筑内被忽视的元素。同时，它也延伸了视野范围，增添了空间的深度感。水平滑动开启的窗户重新用作室内的推拉门，当门打开时，doma区域成为室内空间的一部分。

The mirror reflects not only the interior space, but also adjacent walls and its neighbourhood, revealing otherwise overlooked elements of the architecture from many different angles. It also created extra scope of sight and added a sense of depth to the space. The horizontal sliding windows were reused as the sliding doors inside. When the doors are open, doma becomes integral part of the indoor space.

▼镜子不仅反射着室内空间，也反射着相邻的墙面和周边的环境，the mirror reflects not only the interior space, but also adjacent walls and its neighbourhood

▼水平滑动开启的窗户重新用作室内的推拉门，当门打开时，doma区域成为室内空间的一部分，the horizontal sliding windows were reused as the sliding doors inside. When the doors are open, doma becomes integral part of the indoor space

通过对现有窗户的改造和探寻镜子的反射效果，改造设计创造了新的视野和开放的室外空间，融合了室内外联系。

As the result, the renovation created additional views and open-air space through reworking the existing windows and exploring the reflective effects of mirror which intermingles the relationship between the interior and the exterior.

▼施工建造过程，construction process

▼细节，details

▼平面图，plan

The Mirror Window Kosaku Matsumoto Location: Tokyo, Japan Area: 30㎡ Project year: 2017 Photographs: Nobutada OMOTE