It tells a story of the past and is also the background of the transformation design. Therefore, we mainly focus on the first floor elevation and the gap between the first floor elevation and the red brick wall. We separate the gap into the entrance courtyard and the internal courtyard. At the same time, different residential functions are placed in the two courtyards to break the facade boundary, so as to reconstruct and blur the architectural boundary. The two courtyards have slightly different ways of blurring architectural boundaries.

In the entrance courtyard, the black box is embedded in the building, half of which is indoor, and the other half extends to the courtyard with a whole side of frameless glass. The world inside the building is laid out and infiltrates the city through the windows on the red brick wall. The scenery of the city also reflects romance and vitality on the glass facade of the black box through the window. In the internal courtyard, the indoor log ceiling extends to the courtyard, and the new facade is hidden to integrate the indoor and outdoor spaces.

The C-shaped teahouse is located in the courtyard, dividing the external urban environment and making the transparent space introverted. The confrontation between history and the contemporary has resulted in the change and blending of time and space, and the multiple meanings of the boundary are no longer clear and definite. Therefore, people who are in it are not bound by the conventional concepts, and obtain the dual freedom of body and spirit. When the interface relationship is no longer clear, the interior and exterior of the building become blurred, and the space begins to penetrate, the sense of the garden appears.