The invention could be a prefabricated modular greenhouse comprising a plurality of sections, each section constructed from a framework further creating an open space that is enclosed by a cover attached to the framework; a first group of sections from the plurality of sections forming a plurality of foldable panels, two or more foldable panels being connected together in a manner to allow the one foldable panel to fold upon the second foldable panel for a compact state; a second group of sections from the plurality of sections are connected together to form at least one non-foldable panel; and the connected non-foldable panels and the at least one foldable panel being removably connected to form an assembled modular greenhouse that allows additional non-foldable panels non-foldable panels or both to be added to assembled modular greenhouse to subsequently change one or more architectural details of the assembled modular greenhouse.