内胡同的改造策略受到本地杂院居民自发的改造策略的启发。本项目入口右边原本是一条小胡同，胡同里的居民将其入口处增设了院门，使其转变为一个杂院——胡同院。

The renewal strategy of In-Hutong was inspired by the spontaneous renovation strategy of the residents living in the local hutongs. On the right side of the project courtyard was originally a small hutong (alley), at the entrance of which the residents added a gate transforming the hutong into a shared courtyard – Hutong courtyard.

▼项目概览，preview © 孙一凡

鉴于天桥北部平房区在历史上就没有形成严格规制的北京四合院建筑型制，因此本地居民突破胡同——四合院的形态限制，采用灵活多样的设计手法应该受到尊重。不同于此，由于本项目的目标并非增加建筑与人口密度，因此本项目采取相反的策略，将与胡同院入口并联的原本的杂院，改造为一个内胡同，使得原本封闭的杂院空间被由外部延伸进入的内胡同重新组织。

▼建筑原状，existing condition © 车飞

The bungalows in the northern part of Tianqiao area did not have a strictly regulated Beijing Siheyuan architectural system in history. Therefore, the local residents breaking through the typical hutong-siheyuan morphological restrictions and renovating their residences in flexible and diverse ways should be respected. Differently, since the goal of this project is not to increase the density of buildings and populations, the idea is to adopt the opposite strategy and to transform the original shared courtyard in parallel with the entrance of the Hutong courtyard into an In-Hutong (inner alley) so that the originally enclosed courtyard space is reorganized by the In-Hutong extended from the outside hutong.

▼入口路径，entry way © 孙一凡

▼进入院落，arriving at the courtyard © 金伟琦