687211有四个主要功能：一楼是一家以爵士音乐为主题的咖啡馆，这个空间里将展示和播放空间的主人多年来收集的爵士乐黑胶唱片；二楼的一半面积是一个展厅，常设的展品是Dieter Rams的工业设计作品以及设计类的图书，同时这个空间还会举行一些设计类的临时展览；另外“一半的一半”，是个人办公空间，另一半则是自用的音响室。四个功能从公共（对外经营）、半公共（只对会员开放）、半私密（接待访客）、到完全私密，其空间属性层层递进。 原有场地一二层各有入口，楼板可改造范围有限，二层空间跨越剪力墙。 我们尝试在一张图纸上叠加光线、声场、模数和空间的递进关系，并以这张图纸作为设计的“概念”，与客户沟通并同步团队的设计目标。最后我们加入材料的逻辑，使光线获得了承托，声音获得了质感，细部的尺寸和交接也变得易于理解 完成后的空间呈现出一种“整体的流动感”，它跟随音乐流入每一个在场者的情绪之地，但却无法用语言和照片去复现。
687211 has four main functions: the ground floor hosts a jazz-themed café, a space where jazz vinyl records from the owner’s plurennial collection are made available to be played; Half of the second floor is an exhibition hall with permanent exhibits of Dieter Rams' industrial design works and books, as well as temporary design exhibitions; The remaining section is divided into a personal office space and a sound room for self-use. The four functions range from public (external operation), semi-public (members only), semi-private (receiving visitors), and completely private, with their corresponding spatial attributes progressing layer by layer. The first and second floors of the original site each have entrances, the floor slab can be modified in a limited range, and the space on the second floor spans across a shear wall. We try to combine the progressive relationship of light, sound field, moduli and space on a single drawing, and use this drawing as a "concept" design to communicate with the client and synchronize the team's design goals. Finally, we valued the implicit logic of materials to call attention to streams of light and sound textures, and to ensure that the size and connection of the details be easy to understand. The space at its completion presents a "sense of overall flow", which was eases the music into the emotional place of everyone present and cannot be reproduced merely in words and photographs.