The core idea behind the urban development concept is to strengthen communal living by creating a shared green center. The building design runs across the property along the already sealed area of the existing structures. The design divides into two building volumes, creating an open and accessible space. Buildings are placed along the property boundary, generating a central open area with high-quality spaces for social interaction. Minimal surface sealing allows for the preservation of most of the existing trees. The buildings step up from a single-story kindergarten in the south to multi-story housing developments for subsidized and student housing in the north. A terraced arrangement from north to south ensures optimal sunlight and creates a smooth transition between commercial and residential areas. The northeastern part forms a closed block along Von-Stauffenberg-Straße, protecting the courtyard from noise, making the green center a peaceful retreat. The green heart of the development brings the lush vegetation of Aaseestadt into the communal area, contributing to healthy living. To reduce urban heat and improve the microclimate, all roof surfaces are either intensively or extensively greened, except for the kindergarten roof, which is part of the play area. Attractive rooftop terraces are also provided, covered by semi-transparent photovoltaic panels, generating 850 sqm of solar energy, equivalent to 1 kWp per housing unit. The building layout prioritizes tree preservation, and only a few trees are replaced. The underground garage is designed to preserve root space, ensuring that the landscape remains green. The outdoor area spans 5,500 sqm, of which 4,500 sqm is dedicated to social and recreational use, as well as renaturation. The design includes surface-level water management features and electric car-sharing spots, further reducing the environmental footprint. The area offers a lively mix of residential units for all generations. The two building volumes separate the subsidized and student housing from the privately funded and senior residences, each with its own underground garage. Climate-friendly mobility is prioritized, with reduced car spaces offset by additional bike and car-sharing spots. 180 double-decker bike spaces are available in the garage, with another 240 placed near building entrances. The housing for students is accessed via open corridors facing the green heart, encouraging social interaction. The senior residences have a quieter entry from the west. The kindergarten is situated in a traffic-calmed southern section, with a shared, naturally lit central play area. Outdoor play spaces are accessible from the first floor and a roof play area, offering a safe environment for children. The design meets accessibility requirements, and all stairwells are naturally lit and ventilated. Waste management is integrated through evenly distributed underground containers. The building placement was developed independently of existing property boundaries, necessitating a redivision of the land. The new plot divisions will separate the eastern plot for the kindergarten, subsidized, and student housing, from the western plot for the high-rise and senior residences. Some building elements, such as the underground garage, will cross plot boundaries, requiring easements for shared use.