▼庭院概览 overall view of the courtyard ©亼建筑

原建筑是一座已成为危房的八十年代的平屋顶建筑。中间院落的地面低于外面被修缮过的胡同道路。北屋内两层的净高均不足两米，甚至需要低头来穿过木梁。由于胡同重建的各种要求和限制，设计成为了一个利用限制得出答案的过程

The original building constructed in the 1980s was a dilapidated hutong house with flat roof. The ground level of the courtyard in-betweenwas lower than the repaired alleyways outside the yard. The clear ceiling height of the both two floors in the northern part building was less than two meters. Peoples had to lower their heads to avoid bumping the wooden beams when walking through the room. Due to the variety of requirements and limitations of the redevelopment and construction in hutong area, the design becomes a process of .

▼改造过程，renovation process ©亼建筑

为了给室内空间争取高度，设计降低了基地的地面高度，并利用高差，分出几个不同高度的台地。利用围墙和建筑之间的狭长空间作为模糊的过渡空间，设置分散的台阶，弱化高差感。所有的台阶也在不同的界面处起到了不同的功能作用。

To create enough ceiling height , the ground of the site was further lowered down. The height difference was used to construct several platforms of various heights. The deep and narrow area between the enclosure and the building was designed as blurred transitional space where scattered steps were set to make less contrast between outside and interior heights. Steps and platforms played different roles at corresponding interfaces.

▼改造前后流线变化，circulation before and after renovation ©亼建筑

▼降低基地高度后的庭院，courtyard with lowered ground level ©亼建筑