Abstract: A modular construction, in particular a pond construction or other garden construction, wherein the construction is supported in the subsoil, comprising at least two tubes (2), of which first, substantially hollow ends project into the subsoil, and wherein screw thread-shaped flanges (3) are provided on the tubes (2), which support the tubes in the subsoil. The construction further comprises at least two coupling pieces (5) which are, at least during construction, each axially freely pivotably supported on second ends of the respective tubes (2), and a girder (7) which is attached-the coupling pieces (5).