This final year project proposes the building of a public leisure center, which consists of a tropical garden and an indoor swimming pool (see Figure 1), both within the same enclosure, so the installations can be enjoyed all through the year. In order to define a unique and compact volume, an organic form with its own identity was chosen during the enclosure's conceptual design phase. This volume needed to meet several requirements as the enclosure's configuration should adequately integrate the different uses for which the enclosure is projected (garden-hall-swimming pool), It should be structurally and economically feasible, there should be enough light in the garden and it should be singular and efficient in its structure.