The location in the park's protected area required particular attention to ecological aspects to be observed in the construction of this new building, which was to replace an outdated childcare facility from the post-war period. In addition, the construction during ongoing operations required a short construction period and low construction site emissions. Apart from the basement and the floor slabs, respectively, the three houses were therefore built in a skeletonised timber module construction method at the same position as the previous single-storey buildings, which had become too small. The wall and ceiling panels made entirely of glue-laminated timber were delivered prefabricated, the assembly of the larch wood façade was carried out on site. Styrofoam was not used as insulation material, instead materials such as foam glass gravel and foam glass panels were used for the basement wall and perimeter insulation, and wall insulation was made of mineral wool. The landscape conservation measures focused on preserving the diversity of regional animal and plant species and their basis of life. Extensively greened roofs, nesting and breeding places for protected animals such as bats and swifts, bee hotels for wild bees and retreats for lizards were therefore just as much an integral part of the room programme as the spacious group rooms with plenty of daylight and a good indoor climate for the children. Thanks to an adapted pathway leading through the area, the three differently sized houses are now accessible without barriers.