RAIN ARCHIVE

Rainwater in cities is usually treated as a natural burden that must be discharged as quickly as possible. Once rain falls, it is carried away through roofs, roads and drainage systems, and the process is soon forgotten. RAIN ARCHIVE seeks to rebuild the relationship between people and rain. It transforms rainfall from a fleeting climatic event into a continuous architectural experience. Through rooftop harvesting, filtration and recirculation, controlled water descent, shallow water courts and public spaces for pause, the building becomes more than a shelter from rain: it acts as a spatial medium that records, reveals and preserves it. MAKING RAIN PART OF THE ARCHITECTURE The building adopts a climate-responsive design strategy. A thin, horizontally extended roof collects rainfall across gently sloping surfaces and channels it into concealed linear drainage. After first-flush diversion, filtration, storage and circulation, the water is reintroduced into the building to create a fine controlled rain curtain, produce natural reverberation, cast reflected light from the water surface, moderate the local microclimate and establish a sensory connection between people and nature. Here, rain is not a decorative landscape device but a functioning architectural system. FROM WATER FEATURE TO CIRCULAR WATER SPACE Conventional water features often rely on continuous energy consumption and artificially produced visual effects. RAIN ARCHIVE reverses that logic: the building does not create additional water; it learns to use the water already present. The complete cycle moves from roof collection to first-stage filtration, underground storage, water treatment, recirculated display and reuse. In dry weather, the spaces remain safe, dry and fully operational. When it rains, the building activates the rain experience and turns the natural climate into a spatial event. SPATIAL EXPERIENCE: FROM WATCHING RAIN TO ENTERING IT A sequence of spaces creates distinct encounters with water. At the heart of the building, the Rain Oculus Hall guides natural rainfall through a controlled roof opening. Fine lines of water fall into a shallow reflective court, generating subtle changes in light and sound. The focus is not spectacle, but the sound of falling drops, the changing light on the water and the act of dwelling within the space. The Archive Gallery Corridor records memories of rain from different regions, seasons and cities, using daylight, material texture and framed views to reveal the relationship between rain and environment. The Tea Water Court brings the Eastern culture of unhurried pause into dialogue with contemporary environmental design, creating a modern public place for slow exchange among water, plants and light rather than a conventional tea room. REALISTIC CONSTRUCTION AND MAINTENANCE Long-term operation is central to the design. For wet conditions, the building uses R11–R12 slip-resistant natural-stone flooring, separated wet and dry zones, concealed linear drainage, accessible filtration modules, a dedicated water-treatment plant room and protected edges around the shallow water courts. Every water experience is grounded in buildable architecture: rain can be collected, the system can be maintained and the spaces can remain in long-term use. MATERIALS AND NATURE The material palette emphasises time and durability: pale-grey mineral surfaces, natural slip-resistant stone, warm oak, brushed stainless-steel water elements and locally adapted moisture-tolerant planting. These materials do not compete with nature; they change with it over time. The building is conceived like a rock continuously shaped by rain—quiet, stable and capable of holding memory. DESIGN VALUE RAIN ARCHIVE does not set out to create a building from which rain is merely observed. It proposes a new architectural relationship: a shift from buildings resisting nature to buildings working with it. By integrating rainwater circulation, spatial experience and public cultural functions, the project explores how future urban architecture can reconnect climate, resources and everyday human life.