In Abano Terme, Italy, a new multi-purpose structure has been built in the urban park. The structure is a Mero spaceframe structure cladded with membrane on nodal supports. In close collaboration with the architects and the supplier of the space frame structure the top chord geometry has been optimised in order to be achieve a homogeneous membrane geometry together with an evenly distributed membrane stress. This paper presents the project form the geometry development to the detail design, fabrication and installation.