As the entrance to Stuttgart's new main station, the A3 development site plays a special role in the urban fabric. In a location that, more than almost any other, symbolises transformation and public consultation processes, the open public competition 'Raum für Ideen' (Space for Ideas) highlighted what is missing from the future city centre: a consumption-free, weather-protected yet open space for the urban community.
With the O.A.S.E., we propose a social innovation hub here as public-benefit-oriented infrastructure – an Open Appropriation and Social Development Space that functions as a climatic and social oasis.
The reused supporting structure of the historic station canopy provides an overarching framework, beneath which a permeable fabric of open space and buildings emerges. In this sheltered interior, leisure and activity converge: people can simply be here, strike up conversations, initiate projects, develop them further together and test them in practice. Workshops, open learning and exchange spaces, as well as venues for display and presentation, intertwine to make social issues visible and negotiable.
This creates a new urban space that not only offers shelter and a pleasant environment, but also acts as a catalyst for exchange, participation and collective action, and supplements the city centre with a public infrastructure that has been lacking until now.

With the New Centre, Silberstedt is gaining a strong, identity-forming centre that reorganises public services and further develops the town from its existing stock. Education, health, culture, housing, utilities and mobility are spatially bundled and linked together via short distances. This creates a neighbourhood suitable for everyday use and suitable for all generations, bringing together the basic functions of village life at its core. The starting point is the careful conversion of a landmark building from 1886. Instead of new construction, the concept focuses on further building: existing structures are preserved, repurposed and activated with new functions. The community centre, village office and village canteen create space for clubs, work and encounters – resource-saving, economically efficient and firmly anchored in the history of the place. The existing buildings remain an anchor that creates identity and become the driving force behind development.

A clearly structured open space system unfolds between the village square and the village park. The square forms the urban stage for markets, festivals and exchanges, while the park, as a green centre, combines local recreation, play, sport and biodiversity. At the same time, it takes on a climate-adapted function as a retention area during heavy rainfall.

The centre is complemented by a community swimming pool, a cross-generational residential quarter and the upgrading of the school and kindergarten. Barrier-free paths, new bus stops, sharing services and bicycle parking spaces strengthen the sustainable mobility.

Under the title 'Blankenburg Quartet', a new urban quarter is being created with four independent neighbourhoods that combine to form a diverse, communal and sustainable whole. The design further develops the plans for the circular city in the south of Blankenburg. Water cycles, biodiversity, microclimate, active mobility and diverse uses of open space form the basis of a resilient neighbourhood structure that gives equal consideration to social, ecological and economic aspects.

The neighbourhoods have different focuses in terms of landscape, mix of uses, public space and community infrastructure:

AuenKiez: Landscape-oriented residential quarter along the tram line, characterised by the Schmöckpfuhlgraben with retention areas and wetlands – a climate-adapted living environment.

WaldAllmende: Island neighbourhood with a school, sports hall, daycare centre, playgrounds and open spaces for residents, clubs and educational institutions. The adjacent forest remains a natural and recreational area.

ZenKiez: A combination of residential areas in the east and commercial courtyards in the west, combining work, everyday life and retreat, and integrating existing spiritual use.

Production triangle: Urban commerce with a circular hub at the heart of a resource-saving circular economy.

All neighbourhoods are connected via a common centre that serves as a social, cultural and functional meeting place. Existing paths and green corridors are continued, landscape structures are integrated and small-scale developments and green transition zones are used to mediate between them at the edges.

A community-oriented neighborhood is taking shape on the site of the former municipal plant nursery, combining living, education, care, and nature conservation.
The existing fabric, including the greenhouses, seedbeds, and wild green spaces, shapes the design. The characteristic sloped roofs become a design motif, while generous green spaces invite the landscape to flow into the neighborhood.
At the heart of the quarter lies the ‚Werkhof' – a vibrant hub with workshops, gardens, a canteen, and programs offered by the Montag Foundation and the Neue Stadtgärtnerei initiative. Care facilities and a café complement this communal enter. The residential buildings follow the north-south orientation of the existing layout. The timber frame construction allows for flexible layouts and supports diverse living concepts. Shared outdoor spaces encourage neighborhood interaction.
A green belt with wild zones, large trees, and seedbeds links the neighborhood to the landscape, fosters biodiversity, and invites exploration along an adventure trail.

The design is based on the historical elements of Münster's cultural landscape and incorporates them into the spatial concept. Starting from the waterway, a carefully configured open space framework of landscape and park areas with site-specific focal points and functions structures the space and forms the basis for an attractive and future-proof model district. A combination of a high mix of uses for revitalization and open-use structures for flexible development
forms the structural backbone of an adaptable and sustainable urban quarter. New ideas of living, sharing and working together will become a living reality here.

The open space concept pursues a careful interlocking of landscape and urban development, in which the natural topography and existing biotope structures are integrated into the urban development. Starting from the waterway, the landscape flows through the entire design area and connects the new buildings with their surroundings. This creates a harmonious interplay between open cultural landscape, urban life and natural design. The focus here is on the use of rainwater, which is integrated into the open spaces not only functionally but also in terms of design.
The mobility concept is based on the promotion of eco-mobility with a clear focus on public transport, cycling and walking and thus contributes to reducing emissions, increasing quality of life and climate-resilient development of the
neighborhood.

The proposed neighbourhood combines compact urban living with generous landscape access. Two distinct spatial characters define the overall structure:

1. Ems-Karree, an urban block structure anchored by a central neighbourhood square, providing space for local amenities, working and community uses.

2. Ems-Gärten, a residential area of green courtyards and open structures with a direct link to the restored Ems river landscape.

A public axis connects the main road to the southern riverside. This spine creates a coherent sequence of urban spaces and green corridors, ending in the Deichterrasse – a central public landscape element with promenade, playground and open lawn.
The urban figure responds to topography and noise with a robust perimeter edge towards the Münsterdamm and a gradual opening towards the Ems floodplain. Different housing typologies and compact building forms allow for a mix of uses and flexible living models.
The open space concept merges urban squares, shared courtyards and riverside landscape into a continuous network. The Ems cycle path links the neighbourhood to regional routes and reinforces the experience of nature as part of everyday life.

The new primary school with 2-court sports hall combines high architectural quality with clear functional structures and a sustainable concept that promotes long-term education and community.

4 buildings - 4 wings:
The school uses are divided into four clearly structured buildings, which are arranged along the common centre. The public areas - sports hall, music school and community library are located in the north and open up towards the town.

Centrality:
The 'Common Centre' forms the heart of the school and combines communal and external
uses into a harmonious overall structure. It links the open spaces and creates a flowing transition between indoor and outdoor spaces.

Connections to all sides:
The central axis links the school in all directions. Side entrances integrate between the buildings on the ground floor and create small, informal passages. At the same time, separate entrances provide access to independent utilisation units.

Sustainable learning houses:
In accordance with the "house within a house" principle, the classes and differentiation rooms in the new self-sufficient learning houses are organised around an educational centre. Concentration,ncommunication and play find the right space here.

Hanover's Vahrenwald district is on the move. The development of the previously isolated area around the Musikzentrum and the reconnection with its surroundings offer the opportunity to act as a catalyst for sustainable neighbourhood development in the surrounding and beyond - as an exciting productive quarter for cultural industries and urban production, as a green corridor that connects and improves the urban climate and as an open, inviting urban space for play, sport and exercise, especially for children and young people.

In terms of urban space, the neighbourhood has two central qualities. On one side, the urban space is characterised by the typical 'Vahrenwald block' - clearly structured spaces, characterised by residential use and protected greenery in the inner courtyards, but also a lack of public green, recreational and play areas. On the other side, the railway line borders the neighbourhood - a strong barrier effect, noise pollution, but also biotope structures worthy of protection and plenty of space for previously underrepresented uses and new ideas.

A targeted opening towards the neighbourhood and a diverse mix of uses will turn the site into an inclusive meeting place that combines commerce, housing, culture, education and social participation. Low-threshold cultural and leisure activities not only promote creativity and equal opportunities, but also strengthen the residents' sense of belonging. By reflecting on different planning scenarios, an overall concept was developed that focuses on resilient, phased urban development, utilises the potential of the existing buildings and anticipates the dynamics of the local cultural scene.

The concept identifies three potential areas for careful urban extension: two urban neighbourhoods adjoining Feldmoching and Ludwigsfeld, and one landscape-oriented neighbourhood north of the Fasanerie. Areas of high landscape value such as Feldmoching North/West, the Obermoos and the Schrederwiesen remain undeveloped. The new neighbourhoods connect sensitively to the existing urban fabric, with open spaces acting as linking elements. A broad range of housing types strengthens social mix and creates long-term perspectives for existing residents. Local supply facilities as well as new social and educational infrastructure complement areas that are currently underserved.

The mobility concept relieves existing neighbourhoods by prioritising public transport, cycling and walking. The "Landscape Tram" connects neighbourhoods and recreational destinations with the regional public transport network, while compact districts offer additional options such as car sharing, bike sharing and micro-mobility.

The landscape concept builds on the productive character of the moor and heath landscape, structured by park corridors and a fine-grained network of paths. Lakes, avenues and riparian zones provide continuity and orientation. The management of rainwater and groundwater becomes a strategic component of a co-productive landscape, integrating retention areas, greywater reuse, soil-sensitive land management and rewetting strategies.

Large-scale networked, small-scale mixed and circularly organised - this is how we envisage the future urban expansion of the growing city of Leipzig. The landscape and urban space of Heiterblick-Süd is characterised by typologically very different settlement clusters within an open space shaped by woodland and agriculture. The design takes up this existing structure and supplements it with another compact and mixed neighbourhood embedded in a flowing and interconnected landscape - the neighbourhood island Heiterblick.

The landscape of the Paunsdorfer Bogen is continued both to the north and south and linked with the forest and field areas to the east of the motorway. The compact neighbourhood contour folds inwards and creates green fingers that act as climate corridors and ensure effective air exchange within the neighbourhood. This creates a total of five clusters that overlap in the centre and form a bundled, central district hub with a wide variety of uses. In addition to the common centre, five green squares will create a hub and meeting points for the various neighbourhoods. These will have clear addresses and different characters. The individual neighbourhoods each have their own mix of different residential building typologies, while the centre of the district is characterised by a vertical mix of uses and public ground floor zones. The focus here is on communal and sufficient forms of living.

At Campus Flensburg the landscape takes center stage. The site, which is shared between the European University Flensburg (EUF) and the University of Flensburg, features areas of dense urban structures juxtaposed against expanses of undisturbed nature. Because of its proximity to the town's centre, the campus constitutes an important site for enabling citizens' access to nature, as well as a social space and a logistical link for students. Our design acknowledges this, and despite expanding the campus to accommodate more students and add new uses, no additional land is sealed.

The plan was developed through a cooperative workshop procedure together with our team-mates at TREIBHAUS. It embraces the different urban planning qualities of the two universities and the connecting landscape park as well as the needs of all stakeholders, locating shared facilities for all users at the heart of the campus. A central element of the design is the campus loop, which serves as an important pedestrian route across the campus while also facilitating orientation. This path is complemented by the garden loop, a greener route creating connections to the open spaces and the surrounding area.

The overall campus design observes holistic principles of sufficiency and circularity; requirements for buildings, infrastructure and parking spaces are critically scrutinised, while sustainable mobility and energy solutions go hand in hand with integrated design to ensure that resources are efficiently shared and reused. The consistent development of ground-level parking and a strategy of redensification preserves the defining quality of the campus to be preserved - its green, open landscape.

The Henschel Quarter opens up hertitage sites to the public and secures them through flexible use. It is integrated into the city and is accessible to everyone. The aim is to preserve the historic industrial culture and make it usable. Listed buildings are carefully restored and remain part of the public space. The industrial past will be preserved through minimally invasive interventions, while new and predominantly commercial uses will revitalize the old halls. The open space will be transformed, historical traces such as tracks and crane runways will be preserved, supplemented by green spaces and playgrounds. In terms of urban planning, small-scale building typologies create the transition to adjacent districts, while high points mark important locations. Connections for pedestrians and cyclists create a continuous and close-knit network in the district. The existing buildings will be supplemented by new buildings whose design is based on the industrial character. Historic parts of the buildings will be retained and partially integrated into the outdoor space. In the center of the quarter, a "hall for all" with restaurants, culture and sports will be created, surrounded by creative and commercial uses.

The Henschel Quarter focuses on sustainability by preserving the existing buildings and reusing gray energy. Demolition materials are recycled on site and new buildings are constructed from sustainable materials. Renewable energies such as solar panels and geothermal energy supply the quarter, while open spaces improve the microclimate, and the combination of history, commercial, cultural and innovative offerings makes the Henschel Quarter a vibrant part of Kassel.

What potential does Frankfurt's city centre have for conversion and sustainable inner city development? The Gutleut district in the heart of Frankfurt has so far been an infrastructurally characterised transit area and largely isolated from the nearby banks of the Main. The concept pursues the vision of transforming the area into a productive city and combining urgently needed affordable housing with urban production and new neighbourhood infrastructure. Gutleutstrasse becomes a climate strip and connects the north and south of the neighbourhood as a linear open space. Green axes connect the neighbourhood with the water. Public and residential facilities such as a school, daycare centre, local supermarket and neighbourhood meeting point ensure frequency and short distances. Institutional spaces such as the sports hall and theatre open their doors to the neighbourhood.
The banks of the Main will be designed as a sports and recreational area and, together with the Klimastrip, will create a new blue-green neighbourhood character. In the overarching urban context, Gutleut-West will in future follow the guiding principle of a high-contrast, loosened-up and green urban landscape. Striking landmarks such as the power station and the water reservoir characterise the cityscape and mark the transition to the city centre. The central idea of 'infrastructure as a lever' illustrates the transformative potential of human-centred infrastructures. Such infrastructures go beyond their original, purely technical function and create the conditions for positive social developments. They offer the opportunity to attract interesting stakeholders from different areas and thus create synergies that radiate far beyond the built environment.

How can the quality of living and lifestyle of a city and village be combined? The urban village Lörick combines characteristics that are classically described as 'urban', such as high urban density, a mix of uses and good infrastructure, with those of 'village' coexistence, such as neighbourhood identities and a direct connection to green spaces. This makes it a meaningful and integrated addition to the Düsseldorf district of Lörick, which is characterised by the contrast between urban and village structures.
The landscape and urban design concept picks up on the historically anchored field structures developed over decades, which still characterise and surround the planning area today. The landscape was successively divided into strips of different widths with a north-south orientation and thus cultivated over the years. This existing structure is taken up spatially and transformed to meet the requirements of an urban village. Analogous to the north-south orientated field structures of the surrounding landscape, differently programmed 'field strips' are created that accommodate buildings and open space uses. Each building is given as large an intersection as possible with a green strip characterised by the landscape, so that the desire to live in the countryside is addressed despite the high urban density.

The site of the former state authority building is located in the framework plan area of the federal district in Bonn. In the „Laboratory" area of specialization, this formulates a diverse mixed quarter with a residential focus for the site. Following a study on the distribution of use and building mass, an urban development framework plan was drawn up in 3 urban development variants.
This involves the preservation of two existing buildings with a gross floor area of around 45,000 m², the demolition of which had actually already been decided. Two urban residential courtyards and two high-rise buildings with a plinth level complement the existing „Liegende-8" and „L-building" to create a quarter with clearly defined urban spaces and, together with the green forum, form the robust basic structure.

To the north, a 120m high-rise building with the Secure Digital City Campus (SDC) and additional office space in the base leads across the opening square into the center and into the quarter. Privately financed residential housing is planned above the base. The counterpart to the high-rise building is the hybrid usage module at the southern corner with a three-storey primary school and daycare base and a small residential high-rise (max. 40 m), which houses subsidized apartments for students and trainees. The schoolyard is located under the existing trees along Nahum-Goldmann-Allee, while the outdoor daycare area is located on the roof of the base level.
One storey will be added to Liegende-8 in lightweight construction, accommodating the local supplier in the northern section and otherwise being used entirely by the city administration. The first floor areas form a generous arcade towards the green center and the 120m high-rise building. Two spacious residential courtyards (including the existing L-building) with active first floor uses towards the center (gastronomy & retail) complement the existing „Liegenden-8" to create an urban quarter.