In the summer of 2019, we come to the construction site on Sanshan island in the middle of Taihu lake as the client consult us for a re-design proposal of the on-going hotel project. At that time, the project was facing a giant modification as the request of government: half of the building needs to be canceled leaving an empty field in the middle of the site; The original modern white box design needs to be changed to slope roof style to coordinate with the Chinese traditional style of Suzhou. Based on such demand, we started our new renovation design.
▼项目鸟瞰，aerial view ©吴清山
We were facing 3 major challenges: 1. How to use the empty field and re-compose the space system. 2. How to change the unyielding request of slope roof to a positive factor and create a special public space. 3. How to improve the space quality by interior design. Based on such perspective, we focus our design on 3 major part of the building and propose 3 major concepts.
▼建筑外观夜景，exterior view by night ©吴清山
▼屋顶平台，roof terrace ©杨阳
Half Porch Half Pavilion
▼入口改造分步gif，entrance renovation gif. ©上海可空建筑设计工作室
As the entrance of the hotel, this space of irregular shape accommodates a series of entrances of independent rooms. It also constitutes a boundary of internal and external, house and garden.
The design starts from the reorganization of existing spaces: A courtyard space was formed by the removal of original hotel room building, where the designed height differences of ground left over. It is a basic problem to reorganize the space according to the existing situation.
▼景观视线，sight to the courtyard ©吴清山
In our first proposal, we construct the boundary between the building and courtyard by using a winding corridor grey space surrounding the garden. It connects different internal functional spaces and organizes the circulation. This system not only connect the internal space and external spaces, but also define the courtyard. By walking on this route, a varied experience of landscape is created due to the height differences and varied openings of surrounding interface.
▼从回廊望向庭院，view to the courtyard from the winding corridor ©吴清山
▼水院，water yard ©吴清山
▼回廊体系组织复杂的高差关系和流线，the corridor system connects different internal functional spaces and organizes the circulation ©吴清山
▼从室内望向庭院，courtyard view ©吴清山
The corridor of same width confronts a sudden change due to the need of avoiding an existing jujube tree at the entrance part. An enlarged roof is formed, creating a dramatic place: Due to dimension mutation, the concept of corridor is changed to a pavilion by the jujube tree which directly participate in landscape instead of being a boundary. A 1.5-meter height wall is placed under the roof to distinguish the front square space and downward ramp behind, converting this space to a double corridor: half porch half pavilion-a compound space under one roof.
▼廊由于尺度的突变而变异成介入景观的“亭”，due to dimension mutation, the concept of corridor is changed to a pavilion ©王伟实
▼廊与枣树相映成趣，the pavilion participates in landscape ©杨阳
In actual construction, the corridor system is not completed, only the entrance part is build. However, the missing of other parts seems to strengthen the independence and space intention of the design concept. Half porch half pavilion as a special installation not only form an entrance space and create an interactive boundary, but also create two different perceptions of space. This space is not only an expression of internal and external, but also present the hidden spatial relationship and cognition between landscape, topography and architecture space.
▼半廊半亭，half porch half pavilion ©吴清山
Floating Roof Framing View
The concrete slope roof attic space on top of main building is designed according to the request of slope roof. In our design, we try to find a light and graceful way to put a slope roof onto the existing structure and space, creating a harmonious overall exterior appearance and also creating an exciting space at the highest place of the whole project.
▼顶层改造分步gif，roof renovation gif. ©上海可空建筑设计工作室
A 180 mm thick cast-in-place concrete board system is adopted to form the structure. By using the triangular feature of slope, we form this space with no beam. The thin board form is presented both interior and exterior, creating the appearance of floating and lightness. Besides the lightness, this system also provides the possibility of view frame: a horizontal long opening facing the Taihu lake creates a terrace embedded into the roof, this opening frames a horizontal picturesque viewport of the landscape by the low hanging eaves; On the east side, the outline of the hill fit into the triangle opening between roof and walls, flow into the space. The landscape of the nature is brought into the space as pictures through the frames created between the roof and the building.
▼主楼顶部阁楼，the attic space on top of the main building ©吴清山
▼嵌于坡中的露台，a terrace embedded into the roof ©杨阳
The tea house facing Taihu lake is the core space of the whole place. The low-lying posture hinted by furniture prompt the way of viewing this horizontal picture of nature, together with the high space of the climbing roof, this space gets multiple vertical scales. The extension of the roof outline brought in the landscape and also form the terrace as one part of the teahouse space. The slight sunken place in the teahouse is filled with white stones to present an abstract perception of water, which mentions the connection between people, space and geographical nature.
▼面湖茶室，the tea house with lake view ©杨阳
▼茶室坡屋顶，the pitched roof ©陈鑫（左） ©王伟实（右）
Lower Living & Distant Dwelling
▼客房改造分步gif，guest room renovation gif. ©上海可空建筑设计工作室
Distant dwelling describes the status of the life on island, low lying living presents the quality and attitude of living by the lake. In room interior design, we try to present this image through space: A deliberately lowered ceiling and a free-flowing floor plan, form a horizontal space with far horizontal view of the landscape, it also present a small scale low-lying posture with the meaning of leisure. Certain parts of the room ceiling are raised in this horizontal space to form the sense of different domain. Besides, we bring in two different wall materials with similar color but contrasting texture to enhance this height difference of ceiling. The rough sandblasting paint depict the side and top of the higher space, in contrast with the smooth paint used on the walls below with closer relationship to people scale, creating double scales of the space, changing the negative factor of low floor height to a characteristic, which also connected to the atmosphere and image of living on the island in the middle of lake.
▼客房内部，guest room interior ©吴清山
▼低栖描绘了临湖而居的品质与姿态，low lying living presents the quality and attitude of living by the lake ©王伟实
▼客房窗景，guest room view ©王伟实
项目设计 & 完成年份：项目设计：2019.6-2019.9 项目完成：2020.10
品牌：1.德律智能螺杆家用电梯 2. PANDOMO墙面涂料 3.tenne 浴缸