With the development of the ecovillage in Hanover, there is a great chance to make an important contribution to future-oriented urban development. One of the most specific features of the ecovillage, and its guiding principle, is sufficiency. To possess more by sharing more: a highly flexible approach that, here, is not only preached but also practiced. In addition to a co-working space and several workshops, ecovillage also offers common rooms in the buildings and gardens that belong to and can be used by everyone, and there is even a special guest house for visitors to stay the night.

The nucleus of the urban design is the lively village square, that is surrounded and framed by the commons. This is the green heart of ecovillage; where water is being managed, food is being produced and the spirit of community is being lived.

One of the drivers for the development was the ambition to become a CO2-neutral settlement. Everything is built from wood, and the sealing of the surfaces is being minimized as well. Biodiversity is promoted and gray- and rainwater are treated and cleaned with the help of a plant-based sewage treatment system. After being directed into a biotope-like lake, it seeps away and evaporates, or serves the residents to water their gardens.

The mobility concept also sets high goals with regard to future viability: it focuses entirely on local mobility. (local public transport, as well as pedestrian and bike path traffic). In concrete terms, this means only 0.2 parking spaces per residential unit are provided. In return, however, there are generous areas for bicycles, rental stations, handcarts, etc. A direct connection to the light rail system rounds off this concept.

The neighbourhoods, which are connected to each other and to the centre by the commons, consist of differently sized clusters. These clusters comprise various building typologies, which in turn provide space for a wide range of apartment forms. This 'democratic' housing mix promotes social integration and creates strong neighbourhoods.

ecovillage can be regarded as a pioneer in a long-overdue discussion of principles in which frugality is pursued as a philosophy.

All facts

500 residential units
900 inhabitants
5 hectares total area
2 hectares of garden land
3100 m² of commercial space
2500 m² communal facilities
Start of construction in 2021
Completion in 2026
More information: ecovillage-hannover.de

The projected population development up to 2035 also shows the trend towards a housing shortage in Herne. Despite this development, vacancies and underused space potential characterize the waterfront area. Due to the strong commercial and industrial character of the area and the dominance of large infrastructures, the existing residential areas are exposed to high levels of noise pollution. A lack of open spaces and cultural facilities, difficult permeability for pedestrians and cyclists, as well as major weaknesses in local mobility, which is too strongly oriented towards private motorized transport, exacerbate the problem of isolated residential areas and the associated social imbalance in the area. Underused areas, vacancies and wastelands lack a coherent development perspective. Added to this are the deficient conditions in the housing offer and the external influences of the climate, energy and health crises with their very own challenges. This downward spiral must be counteracted by integrated and future-oriented planning for the entire area of the water locations. The planning objectives therefore focus on a diversified range of housing with a high degree of social diversity and programmatic mix; on the integrated development of high-quality commercial areas and the harmonization of housing, work, industry, open space, leisure and transport. A multimodal, transport connection and the structural, open-space networking of the entire area are the key factors. The planning objectives therefore focus on a diversified range of housing with a high degree of social diversity and programmatic mix; on the integrated development of high-quality commercial areas and the harmonization of housing, work, industry, open space, leisure and transport. Multimodal transport connections and the structural, open space networking of the entire area play a key role. Overarching climate goals come into focus and are linked to ongoing processes such as the coal phase-out or flood and heat protection through the Emscher conversion and sponge city principles.

BLUE-GREEN NEIGHBOURHOODS

The design taps into the potential to create a green, climate-adapted and carfree district for Münster Hiltrup that blends harmoniously into the existing landscape and settlement structure. Four compact neighborhoods with a large contact area to the open space will be linked by diverse green corridors in the interior (Green Delta) as well as a close-knit network of cycle paths and footpaths and attractively connected to the outside. Motorized traffic is reduced to a minimum and parking spaces are bundled. Within the neighborhoods, the mobility hubs form everyday hubs. A small-scale, differentiated development structure with ground floor uses at the neighborhood squares, social functions and various, mixed typologies suggest a people-centered scale with a rural character. In conjunction with an innovative climate adaptation concept and high ecological and energy standards, a future-oriented neighborhood development is being created for Hiltrup.

Rainwater management follows the principle of the sponge city with the aim of minimizing intervention in the natural water balance, achieving near-natural rainfall-runoff behaviour, ensuring sufficient purification of the surface runoff that occurs, preventing flooding in the settlement area and reducing the runoff peaks into the watercourses to a natural level. Implementation is carried out as far as possible using near-natural methods with a small proportion of technical structures. In addition to the purely water management aspects, ecological benefits such as increased biodiversity and heat reduction are achieved. At the same time, blue-green structures are created that allow residents to experience the element of water.

The Magnum site's DNA of industrial heritage and landscape succession forms the starting point for the transformation into a climate resilient neighborhood. The unique character of the former steelworks is expressed spatially in the overlapping of the scales of human, machine and nature and of the atmospheres between narrow alleys and wide squares.

This productive interplay continues to write the history of the Magnum site in constant change. Three subspaces (water courtyards, forest campus, factory cluster) derive from the site, each with its own independent profile, which form synergies with each other and with the neighborhood. The Magnum Mile connects the three subspaces as a lively backbone of the quarter and the adjacent urban spaces to the west and east.

For the quarter, own systems for the handling of water and soil are developed. They will be used for irrigation, gray water utilization and cooling of the quarter. The goal is to minimize erosion and soil exchange. As much accumulating water as possible is to be collected, filtered and reused. To do this, it will be stored in building-integrated cisterns. Materials collected are reused as much as possible. Existing structures, such as the grove or also hall structures are integrated and the character of the open space and the building structures are developed. The transformation is designed as a gradual, learning and appreciativ process.

The design is based on the concept of a "Circular City", a circular organised neighbourhood, and is guided by the spatial principle "Landschaf(f)tStadt": The landscape creates the city.

A structural and design focus is on the blue-green infrastructure: a 60-hectare landscape park with garden, forest and water land not only offers various places for leisure, sport and recreation but also provides numerous ecosystem services such as climatisation in urban areas, rainwater management, food production and the strengthening of biodiversity.

The neighbourhood is divided into four sub-sections, each with its own specific building and open space structure. All buildings open up to green space and offer a variety of affordable housing options. Construction with wood and recycled materials and the creation of blue-green roofs contribute to the neighbourhood's good climate balance. A new type of building, the so-called CYC Hub, acts as a circulation interface. It houses the technical infrastructure of the circular organised neighbourhoods - such as the energy station and the neighbourhood garage with a mobile station as well as socio-cultural and educational facilities such as a kindergarten, youth club, neighbourhood meeting place and neighbourhood management.

How can strong urban growth be reconciled with village structures? A question that is becoming more and more important nowadays.

In Munich Northeast we orientated our plan to the existing villages, meaning that along the existing and future infrastructures (S-Bahn + U-Bahn) new dense, urban, and mixed-use quarters are growing, which structure the space. In this way, a district for 30,000 residents blends smoothly into its surroundings.

A village and its church. Hybrid multi-story buildings in a mosaic of squares, gardens, and fields. A water landscape with an alpine view. Mutual references and soft transitions facilitate the emergence of diversity and a mixed city of diverse actors. A field of tension between anonymity and community, between central S-Bahn and historic village square, between the world of work and the field.

What is a Klimaquartier (Climate Quarter) and how do you meet its requirements? With the Klimaquartier in Schweinfurt, we have created a possible answer that is not only about the CO2-neutral operation of the buildings, but also about the energy that has to be used to construct them and the recyclability of the materials. In addition, the focus is on minimizing as well as shifting the mobility of residents away from the car and towards environmental networks. To achieve these goals, the design for the Klimaquartier Schweinfurt follows these development principles:

- Compact urban planning protects the valuable resource soil and offers plenty of space for self-sufficiency, rainwater management and recreational uses.

- The large unsealed areas enable lush vegetation, which promotes biodiversity, creates a balanced microclimate and creates atmospherically strong places. This guarantees a diverse, healthy and livable habitat for humans and animals.

- To promote the local rainwater balance, all of the rainwater on site is seeped away, evaporated or stored in cisterns for watering plants.

- A diverse mix of uses consisting of living, working, supply and leisure activities creates a lively, "complete" quarter and reduces the need for mobility.

- The approach of a sufficiency quarter reduces individual possessions (living space, means of transport, consumer goods, etc.) in favour of communal prosperity, and thus conserves the resources of our planet.

- Sustainable building materials such as wood, clay, straw etc. are used and are installed in a way that they can be broken down according to type.

- Flexible wood system construction and compact building volumes enable cost-effective construction.

- In addition to the existing district heating, only renewable energy sources (Photovoltaics on roofs and partially on facades) are used.

- Made possible by a multimodal mobility offer consisting of cargo bikes, e-bikes, e-cars, bicycle trailers, etc. cars play the least possible importance in the climate quarter.

The development of the former freight station Köpenick offers a unique opportunity to create urgently needed living space and jobs in a central, well-connected location in the immediate proximity of diverse natural landscapes. The major challenge here is dealing with the noise emitted by the railroad tracks, the industrial activity, but also the new eastern ring road.

An open space ribbon links the area with its surroundings, takes over important climatic functions and crosses the neighborhood with public open space uses. An elementary part of the band is the undeveloped area in the north-east along the tracks, which leads the forest into the quarter and is a local recreation area and important retreat for flora and fauna. Noise protection typologies oppose the noise sources in the area and form an urban noise protection. This allows for a quiet neighborhood core with quality housing, quiet open spaces, and working environments. Uses evolve from the surroundings and respond to the differentiated context. This creates new synergies and promotes a functioning neighborhood.

The „Köpenicker Gleislandschaften" transform the former freight station into a diverse, mixed and sustainable urban quarter, creating a strong edge at exposed locations and high-quality living in the inner neighborhood.

As the entrance to INOVA Park, „Tor West" productively brings together history and the future, offers elastic development possibilities and is supported by a robust open space structure. The central museum square offers a lively place to linger for arriving visitors, museum guests, users of the daycare center located there, and adjacent commercial workers.

Three design guiding themes form the basis of the development concept:
1. creation of a strong open space structure. This links the area in many cases via a robust and high-quality design with the northern Gleispark, the Osnabrücker Straße and the open cultural landscape in the south .
2. integration of historic preservation and new buildings. With the preservation of monuments and integration of these into a clearly structured new building structure, a variety of spatial and functional relationships are created.
3. the clearly structured commercial building areas allow the settlement of many small-scale to a few large-scale uses due to the efficient developments (delivery traffic, MIV, bicycle and pedestrian traffic) and the flexible building orientations and depths. Public generating functions are located at the entrance square and the museum.

The open space performs important climate functions and, with its permeable structure, has good connectivity to the surrounding landscape. North-south connections support ground-level cold air flow for effective summer night cooling. A tall tree population binds fine dust, improves air quality, and provides a high level of comfort in the outdoor space.