Manufacture as much as possible in Spain
This Spanish pavilion at the Osaka Expo 2025 is based on the early understanding, which we reached very immediately with the study of the different possible options, that it was practically unfeasible and very complex to be able to manufacture and build anything in Japan, and even less so in Osaka, around the time of the Universal Exhibition. Therefore, the entire project is based on the idea of manufacturing the maximum possible number of elements in Spain, at a much more affordable price, to then transport everything there so that it can be assembled in a few weeks.
30 containers travel by ship to Japan
This strategy begins with the creation of a base of prefabricated modules with container dimensions that will be transported by ship to the Container Terminal on Yumeshima Island in the port of Osaka, where the Expo site is located. Inside these container modules we will carry all the equipment and materials necessary to set up the exhibitions and shows in the pavilion. Once assembled, the thirty modules will also house all the closed spaces of the building, that is: entrances, offices, VIP rooms, operational areas, kitchens, warehouses, dressing rooms, toilets, restaurant and tapas bar, in a total dimension of 1070m2.
Three construction cranes rented to form the structure of the Pavilion
A tower crane will first be rented for assembly, which will be located at the site where it will be definitively fixed later. When all this foundation is assembled, two more tower cranes will be rented. The three tower cranes will be rented for the duration of the Expo and returned at the end of the Expo. They will be fixed to each other in parallel at a distance of 6 meters between them and will be used as the main structure to support a light textile cover on them. But they will also be used as a comb to place under them all the engines and spotlights of the large stage.
The Plaza de España, a public meeting place
The cover of each module will be made of wood and the sum of all of them, once their side wings are deployed, creates a large platform-stage for the main activities of the pavilion: the exhibition spaces and its store, the conference and show spaces and gastronomic spaces.
Located 3 meters from the ground, it will be the epicenter of the entire pavilion. This large stage of almost 1500m2 can be enjoyed and seen from all places, postulating itself as the great meeting place of the Expo, the Plaza de España, the public place where everyone will want to enter to be able to value and enjoy it. The weather from April to October in Osaka is mild. The aim is to make an open and visible pavilion.
Thirty-two spheres filled with air and a tensioned sheet to create a light and surprising cover
The cover of this plaza is made up of two parts - the spheres and the fabric - and will also come prefabricated from Spain and packaged inside some of the modules. The first part is 32 inflatable spheres of two sizes: 6 and 4 meters in diameter. These spheres will be inflated, positioned and fixed on the tower cranes. Once anchored, the large fabric that rests on the spheres and protects the pavilion from the sun and rain will be deployed. This fabric is fixed with cables to the cranes and tensioned to the floor modules and is manufactured with a transparent area in the east-north part, while the rest, 85% of its surface, will be more translucent-opaque.
Transformability, adaptation and surprise: the jellyfish effect
The Pavilion has been conceived with the idea of evoking the capacity of the jellyfish effect, and is distinguished by its transformability and adaptation to different times of the day, creating a series of unrivaled experiences for those who visit it with the firm decision to surprise each one of the visitors and transport them to a world of unique sensations and experiences. During the day its design is based on the creation of dynamic shadows that give a sensation of movement and constant change. These shadows, projected on the floor in random and changing shapes, formed by all the exhibition and scenographic elements that hang from the comb of the cranes and by the roof elements themselves, create a play of lights and shadows that continually transform the interior space and exterior of the pavilion depending on daylight.
However, the real show begins as night falls. At that moment, the pavilion is illuminated with a series of LED lights incorporated into its structure and its pavement. These lights, controlledly arranged along the different elements of the stage-plaza cover, change depending on the show or the moment, creating an absorbing and magical atmosphere with a constantly changing lighting effect, and when viewed from any place they become to the pavilion in a constantly changing beacon of light on the Expo horizon.
Connected to the Expo, permeable, transparent, welcoming and attractive
The pavilion encourages passers-by to cross it on the ground floor without having to enter the large upper plaza, going from the main façade that faces the expo ring, to the other rear façade, which is not secondary, which faces the forest of tranquility and which can be enjoyed from the upper part where the tapas bar is located.
The pavilion offers visitors an experimental trip that recreates the feeling of being at sea, even if they are on dry land. The architectural design integrates elements that evoke the maritime experience, such as undulating, mobile and changing walls that simulate the movement of the sea and the use of reflective materials that generate an aqueous environment. In addition, interactive and ultisensory technologies are incorporated to immerse visitors in an immersive and exciting experience.
A circular process: disassemble, return, recycle, reuse...
The fundamental idea of this project is not only to prefabricate and make the entire building as cheap and light as possible. The key is in its future, in how it includes the entire disassembly process in its design, in how we reuse each and every one of the elements that make it up. The spheres of the roof are reused as room spaces for rural, private or tourist areas. They will be sold in the pavilion store as objects to be shipped once they are disassembled and packaged. The top fabric is returned to the manufacturers themselves to be recycled into the same material based on prior agreement. The cranes and their foundation are returned to their owner, in Japan or wherever they are rented.