1966年，苏黎世著知名建筑事务所Zweifel + Strickler为“Im Moos”学校综合体进行了方案设计，可直到1969年，项目计划的三栋建筑中只有两栋建成，此外仅有一个多功能厅和体育馆侧翼完工。在最初的设计中，建筑平面围绕一个宽敞的中庭布置，这一点直到现在也没有改变。与六十年代的普通建筑不同，新建筑有五层楼高，是Säumerstrasse大街的高点。

The existing school complex “Im Moos” originates from a 1966 strategic plan by the respected architectural office of Zweifel + Strickler in Zurich. In 1969, however, only two of the three planned structures were built, along with a multi-functional hall and gymnasium wing.

Back then, the complex was focused around a central court, which is still spatially present today. What is notable about the design, beyond the typical modularity of the 1960s building, is the placement of a high point along Säumerstrasse.

▼建筑外观，external view of the building

兼顾既建和未建部分是建筑扩建设计最需要关注的问题。为了保护并充分利用已经建成的室外空间，建筑师在基地上设计了一个小巧紧凑的建筑，其主要功能垂直分布，尽量减小占地面积，以求保留更多开放空间。新建筑并没有和原有的建筑体量融合在一起，而是自成一体，作为一个标志性的建造物，区分内外空间。

Extending an existing site means examining not only the built, but also the unbuilt environment. This point is of the utmost importance. The existing exterior spaces must be used efficiently, as these spaces are reserves for the future. Because of this reason, we created a punctual, concentrated intervention on the site in order to retain as much open space as possible. The new construction is therefore compact, compressed, and organized vertically. Rather than attempting to engage with the existing building volumes, it serves as a means of directing and determining the outdoor spaces, thus achieving a complete composition between inside and outside.

▼建筑和周边树木，architecture with trees around

面向Säumerstrasse大街的校园前院内种有法国梧桐，五层楼的新建筑落于基地东南侧，以留给树木足够的生长空间，在保护已经成熟的植被的同时，可以创造出有序的室外空间。建筑和Nidelbad以及运动场之间的绿地也被保留并且对外开放。建筑建造在与周边景观相连的水平基础上，其中相邻楼层的平面布局呈九十度旋转，建筑立面上长窗和精密划分的小窗交互出现，正是与室内空间相呼应的结果，形成了独特的水平向元素。

In order to preserve enough space for the existing sycamores in the forecourt along Säumerstrasse – which forms the entrance to the campus – the new five-story building was placed as far to the southeast as possible. This accentuates the valuable mature plantings while creating well-proportioned, sequential exterior spaces. The green space between the new building, Nidelbad, and the sports fields remains unbuilt and open. The architectural expression of the new construction reveals the interior logic of the building on its façade; the floors, inverted at ninety-degree angles, and their generously proportioned or punctual openings characterize its appearance. Thus, a structured building is created with the individual horizontal elements, which sit atop a plinth extending into the landscape.

▼建筑立面体现室内布局，the façade reveals the interior logic

这座简洁有力的建筑安静地伫立在由树木和开放空间组成的景观之中，和自然开放的室外空间相同，建筑室内几乎不受结构约束，可以做多种功能使用。平面由两个核心筒支撑，依据相同的基本逻辑发生变化。在设计师的精心安排下，底层，技术层，公共夹层，教师楼层，教室层和学校厨房所在楼层层层相叠，互不相同，满足了新教学楼所需的各种功能。

The robust, simply structured building volume stands almost stoically in the landscape, shaped by trees and open spaces. This approach is replicated in the building’s interior: generous, nearly structure-less spaces allow for flexible uses. The varied horizontal layers of spaces are based on the same basic program and are primarily structured by two central cores. We have differentiated the ground floor from the floors with craft rooms, the public mezzanine, the teacher’s floor, the classrooms, and the floor with the school kitchens. Stacked upon one another, these layers create the sum of the new building’s program.

▼模型展示建筑的主体结构，the models show the main structure of the building