On the initiative of the Stiftung Fürst-Pückler-Museum Park und Schloss Branitz, the monument ensemble in Branitz Park, consisting of the Oberhaus, Blaues Haus, Kuppelhaus, and Ananashaus, is to be expanded to include the Blumenpavillon and the Vermehrungshaus. The octagonal Blumenpavillon and the Vermehrungshaus, which connect to the Blaues Haus, are based on sketches by Fürst Pückler himself. By uncovering the historical foundation structure, it was confirmed that the proposed design corresponds in position to the original Blumenpavillon.
In its overall appearance, the new construction remains clearly subordinate, as the ridge height lies below that of the Blaues Haus, and the roof pitch follows its proportions. The stepped roof structure of the Vermehrungshaus, with alternating roof slopes, creates a lively and varied impression, while the continuous eaves line ties the different building volumes together into a harmonious ensemble.
The connection between the Vermehrungshaus and the Blaues Haus is formed by a cantilevered roof, which avoids any structural interference with the existing building. Beneath this roof, a covered passageway links the area around the Blumensee with the Gartencafé in an open and inviting way. The new building will primarily function as a greenhouse, but during the summer months it will also provide space for smaller events, exhibitions, and presentations. The passage between the Vermehrungshaus and the Blaues Haus is designed to serve as a suitable main entrance for such occasions.
The Blumenpavillon, the connecting corridors, the Vermehrungshaus, the sanitary area, and the Blaues Haus are all situated on one level and are accessible by all. The connection to the Oberhaus is provided internally via a staircase, while an external route ensures barrier-free access. At the entrances to the Blumenpavillon and the Vermehrungshaus, the transition from the surrounding terrain to the interior is designed to be step-free. In the service area, an accessible restroom is accessible from outside.
The grid structure of the façade can be partially identified in the historical sketches. The new steel-and-glass construction continues this fine traditional column layout and incorporates it into a secondary façade layer in the form of an internal metal framework. Along this inner layer of the façades of the Vermehrungshaus and the corridors, vine plants will grow. For this purpose, a network of steel cables will be installed, positioned about half a meter away from the supports. The arrangement of the plants along the façade follows the historical model. These plants will provide natural shading in summer and improve the indoor climate. Large opening elements on both sides will allow the Vermehrungshaus to open toward the Blumensee and the café garden.
Summer heat protection will be ensured not only by the natural shading of the vines but also by internal energy screens positioned directly beneath the roof surface. Natural ventilation will occur through a continuous joint at the base and ventilation elements in the upper sections of the vertical glazing. The articulated roof form of the Vermehrungshaus allows for optimized cross-ventilation through staggered roof peaks. Building services are kept to the essential minimum.
The construction will be carried out in a simple, resource-efficient manner. The foundation slab and selected walls will be built using CO₂-reduced concrete. To prevent water and moisture damage, the edge of the Blumensee will be slightly repositioned. Rainwater from the new roofs will be directed toward the Blumensee for drainage.
