Increasing climate resilience through the development of water retention and ecological education in five historic parks of Wielkopolska

Part I: Comprehensive development of the space of the historic park in Mielno, including the implementation of solutions to improve retention along with accompanying activities. Execution of design documentation and construction works in the "design and build" formula for the project entitled Increasing climate resilience through the development of water retention and ecological education in five historic parks of Wielkopolska. a) The main element of the undertaking will be the creation of a rain garden, located on the park slope leading to the lake: • work will begin with a detailed botanical inventory, taking into account the protection of historical old-growth trees, • then the area will be cleared of invasive species, self-seeded plants and weeds will be removed, and excessively dense vegetation will be thinned (invasive species), • as part of preparing the space, terracing of the slope will be carried out along with the restoration of the historical layout of paths and stairs, which will restore the original character of the park and improve its accessibility. The path will be given an educational function, • in places of planned new plantings, the topsoil will be replaced with a filtering substrate, which will increase the capacity for storing and purifying rainwater. • as part of the activity, native species will be planted that support natural water retention, improve soil quality, and blend in with the existing trees, • the rain garden will be integrated with the existing storm drainage system by creating outlets that discharge water directly into the garden area, thus supporting the local water cycle, • The garden space will be complemented by a square with permeable paving, which will feature benches, elements of small architecture, enabling rest and nature observation, and educational boards (boards are outside the scope of the order). An integral part of the rain garden will be a gazebo serving as a bird-watching point, supporting the educational function and promoting the protection of local fauna. b) The project also includes the restoration of the natural ecosystem in the lower part of the plot, where activities will be carried out to improve habitat conditions for waterfowl. The area will be inventoried, invasive vegetation will be removed, and new plantings will include native species that support natural water retention processes and biodiversity. c) Additionally, as a supplement to the activity, the demolition of existing garage buildings is planned. Demolition is necessary due to their poor technical condition and the use of materials in their construction that are currently considered harmful to the environment and human health. Furthermore, these buildings have impermeable surfaces that limit natural rainwater retention and contribute to the deepening of the problem of sealed surfaces in the park. The removal of these structures and the removal of existing paved surfaces will allow for the restoration of natural soil permeability and an increase in the area's retention capacity. New biologically active surfaces will be created in place of the demolished buildings and removed impermeable surfaces. A supplementary activity will also be the thermal modernization of a part of the existing two-story building. The works aim to increase its energy efficiency through thermal insulation of walls and roof, modernization of internal installations with the inclusion of renewable energy sources, replacement of joinery, and necessary renovation of structural elements to the extent that allows for thermal modernization works. The building will serve as support for information and educational activities – it will be used during the organization of picnics. d) Further activities supporting the restoration of natural water processes are planned in the vicinity of the palace. The removal of the paved road and the liquidation of additional paved surfaces around the palace are planned. In their place, permeable surfaces and new biologically active surfaces will be created. e) Furthermore, modernization of the area's lighting is planned, consisting of replacing existing lamps and installing new park lamps powered by a photovoltaic installation to be designed. f) The scope of work includes preparatory, earthworks, structural and construction, installation, and finishing works. Due to the implementation of the project in the "design and build" formula, the expected scope of works remains to be verified at the stage of preparing the design documentation. g) The scope of the order also includes the purchase and installation of a photovoltaic system according to the following requirements: • installation of a photovoltaic system with a capacity of 16.52 kWp and an energy storage system with a capacity of 20 kWh. The installation will be used to power park lighting and for the needs of the thermally modernized building. • Technical data: o installed capacity: 16.52 kWp o basic technical data of the device: 28 panels, area 77.28 m2, panel power 590 Wp, inverter 1 pc – 17 kW, energy storage 17 kWh o annual energy production: 16,189.6 kWh/year o annual energy demand of the Applicant before and after the project implementation: − before project implementation: 9,356.05 kWh/year − after project implementation: 16,257.912 kWh/year. h) In April 2026, an application for a decision on zoning conditions was submitted. The scope of the order excludes the implementation of supplies in the scope of promotion, i.e., information/educational boards and other educational materials indicated in the Functional and Utility Program.

Part II: Implementation of comprehensive works aimed at increasing water retention in the area of the historic park in Rościno. Execution of design documentation and construction works in the "design and build" formula for the project entitled Increasing climate resilience through the development of water retention and ecological education in five historic parks of Wielkopolska. a) The basic scope...