• Carbon-Based Design – Steps to Zero

    The Netherlands needs 1 million new homes before 2030. How can we ensure that they put as little pressure as possible on the environment? How can we ensure that they meet the challenging climate targets? Even if all future homes are built according to the current agreements (Nearly Energy Neutral Building BENG, and 4% emission reduction in industry), the CO2 budget for construction will run out in 2026.

    This research is a continuation of the earlier report from 2021 ' Carbon-Based Design , research into the environmental impact of residential construction'. The focus is on the embodied carbon (the material-bound emissions from the production and construction process). Which components have the greatest impact on total emissions and how can we adjust our design and development strategy accordingly?

    This report goes one step further and quantifies the untapped potential for the reduction of environmental impact in buildings. With four cases, we aim to bring emissions as low as possible, or even to zero. The report compares three strategies: reuse, renovation, and biobased construction. We do this with the MPG method, which portrays the total environmental impact of a building over its entire life cycle, which is the current Dutch legal framework. Alternatively, with the Paris Proof method by the Dutch Green Building Council (DGBC) we test these results to see if they fit within the CO2 budget. Going beyond the legal framework, we also quantify the potential of Carbon storage in these three strategies.

    completed
    2022
    Rotterdam, The Netherlands
  • Carbon-Based Design

    How can we ensure that the 1,000,000 new homes that are needed in the Netherlands before 2030 exert as little pressure as possible on the already difficult-to-achieve climate targets? Even if all future homes are built according to the current agreements (BENG [nearly energy-neutral building], and 4% emission reduction in the industry), the CO2 budget for construction (under a 1.5-degree warming scenario) will be used in 2026 already.

    As the construction sector, we are currently responsible for 38% of all greenhouse gas emissions. The problem is definitely gaining momentum in the debate; however, the focus within our professional community seems mainly to be on single methods or materials - whereas the solution lies in an integral approach.

    Carbon-Based Design is this approach. It provides insight into the CO2 cycle and what role the construction sector and the circular construction economy play in it. The focus is on embodied carbon (or material-related emissions during the production and construction process) in residential construction. By gaining insight into the construction process and which parts of it have the most impact on the total emissions, we can adjust our design and development strategy accordingly. The aim is clear: to design and realize buildings with the lowest possible CO2 emissions, or ideally even CO2 storage.

    With a focus on the emissions of production and construction and the ratio of operational and embedded energy, we found solutions for the way from carbon exploitation to carbon sequestration.

    completed
    2021
    Rotterdam
    The Netherlands
  • Recyclinghaus

    The recyclinghouse is an experimental residential building in the Hanover district of Kronsberg. It is a prototype that tests the possibilities and potentials of various types of recycling in the real laboratory and shows a cycle-oriented and resource-saving planning approach.

    On the one hand, the recycling center relies on recyclable building products, such as the raw construction made of glue-free solid wood elements. On the other hand, recycled materials such as the foundation made of recycled concrete or wall insulations made from old jute bags are used. There are also large quantities of used components being used which, if possible, originate from the building stock of the client GUNDLACH or have been obtained locally. Particularly important is a recycling-fair design that allows the use and disassembly of the components without loss of quality or a sorted separation of the materials after the end of life.

    The construction industry is one of the largest waste producers and consumers of resources and a significant contributor to global CO2 emissions. When planning buildings, today it is mainly the energy consumption in the operation of a building that is considered. The considerable amounts of "gray energy" involved in the production of buildings remain largely unconsidered. Here, the existing building stock can also be understood as huge raw material storage. The recycling of building materials and materials as well as recycling-friendly construction methods will play an increasingly important role in the future.

    completed
    2019
    30539 Hanover
    Germany
  • Zhuhai Floating City

    Zhuhai is growing. The challenge now is to make this growth consistent with landscape and waters against the backdrop of climate change. The aim is to minimize the intrusion in nature due to ecological and economical reasons and by doing that to create a high quality of living in the city.

    The sponge city principle provides a convenient strategy for this purpose. Diverse water systems for the regulation of tides, flooding rives and heavy rains are not only integrated into the city structure but also utilized to provide various leisure and recreation facilities. In Combination with the local landscape and water characteristics, the sponge city principles shape a unique cityscape. In order to do that the project develops a city typology and various waterfront strategies which are transferable and versatile tools for future urban planning.

    completed
    2016
    32 Weiji Rd, Xiangzhou Qu, Zhuhai Shi, Guangdong Sheng
    519020 Zhuhai, Guangdong
    China
  • CLG Training Institute

    A very special project in our portfolio is the Chalimbana Local Government (CLG) Training Institute in Chalimbana, Zambia as it can be seen as a good example of a passive and self-sufficient city. The aim of the masterplan was to increase the quality of life of both students and academic staff of the Institute, to structure the campus for the long term, and to provide the grounds with a clear, recognizable identity.

Low-tech in construction but high-tech in designing, we created a plan that included everything needed for an autarchic project. In a very sustainable manner, we used the excavated soil to press it into bricks contributing to the buildings being passively cooled and heated. To achieve that we mainly used the sun energy. From a special angle and material of the roofs to the orientation of all buildings to strictly East-West, with the main facades (North & South) avoiding the low angles of the sun, CLG Training Institute became an eco-friendly vision made into reality. Also, we made sure that the rainwater and the cleaned sewage can drain into the groundwater locally, granting a precise water cycle.

    The existing road provides access to the campus by car. Simultaneously, a new main route for pedestrian connections is established as the new 'heart' of the campus. It runs between the mostly residential area on the North and the educational program on the South side of the grounds. These two clusters - housing and education - at the two opposite ends of the campus are surrounded by the lecturers' houses, and by leisure activities. By closing off some of the student housing blocks, small neighbourhoods are created, with inner gardens and courtyards providing atmospheric living quarters.

    completed
    2021
    Lusaka
    10101 Chalimbana
    Zambia
  • New Energie. Opencast mining landscape Garzweiler

    The opencast mine Garzweiler migrates within the region of Cologne / Mönchengladbach / Dusseldorf within decades. Highways are relocated, areas demolished, almost 8,000 people resettled. An abandoned area with no history is left behind. "New Energy" is a landscape in motion and consciously focuses on a development process starting now. The advancing open-cast mining is no longer intended to monofunctionally determine the space, but instead, through spatially and temporally projects, the landscape will develop in an attractive way in every phase.

    "Capturing the hole" is the first development phase: this is not only about the development of the mining area and its staging as a fascination but also by a change of image of the region. In addition, a green-blue infrastructure is being developed, which, as the largest park in Europe, surrounds the opencast mining area. A cable car "overflows" the hole, makes it experienceable and re-connects suspended villages. After the end of the brown coal mining, large areas are free for settlement, landscape and commercial development: a space that will be characterized by an exciting topography with novel open-space structures.

    Idea
    2016
    41363 Garzweiler
    Deutschlamd
  • Unveiling the Rivera

    Tourism, which is important for many countries and regions, harbours the great danger of destroying nature and culture that is worth protecting. At Unveiling The Riviera, we have therefore paid particular attention to using the great potential of the region to create a strong economic base for the population and, on the other hand, to respect, protect and preserve the rich heritage of the Riviera. Our proposal aims to unveil the hidden potentials with three different goals: Restoring, connecting and activating the area, starting from the existing.

    Restoring aims for a rehabilitated and revitalized landscape next to touristic and environmentally sensitive areas. Connecting beaches, hills and mountains with each other and the hinterland is achieved by connections on different scales. We increase the accessibility of the various landscapes of the southern Riviera through hiking trails, a cycle connection following the EuroVelo network as well as a network of new thematic trails along the coast. These connections will increase tourism, targeting different groups in extensive areas that activate the whole Riviera.

    Using the good local climate conditions and local attractions will help tourism extend all season. Our proposal uses the existing panoramic road as a backbone for a new system that can expand the recreation potential of the area. The strategy aims to reconnect the local population with their land, make it tangible in a sustainable way, and give the region the place in the international attention it deserves.

    under construction
    2017
    Sarandë, Albania
    Albania
  • Gardencity 21. Green-urban-connected.

    The fringes of the city hold the promise to live in connection to nature, surrounded by landscape, open space and informal structures. At the same time, areas like these are criticized for their lack of functions, their boredom and their consumption of natural resources. How then – in the spirit of Ebenezer Howard - to create a "green urbanity" which is more diverse, dense, socially mixed and productive while at the same time maintaining the special qualities of the city edge? For the German BBSR, The Federal Institute for Research on Building, Urban Affairs and Spatial Development we developed scenarios on How the Garden City can be translated to the 21st Century?

    A viable model can only ensue when spatial principles and specific qualities are brought and thought together with the processes, structures and stakeholders that shape the city. The planning approach for Garden City 21 therefore draws its topics, concepts and strategies from the context. Four sample areas illustrate how built and unbuilt intertwine, how aspects of a Garden City can be developed not only on the fringes of the city and how it can embrace local competences, programs and structures.
    Scenario-based designs and strategic stories are the starting point, and are used to illustrate the qualities of urban and open spaces, so as to be able to discuss them with stakeholders.

    Link to publication: 'Gartenstadt 21', Bundesinstitut für Bau-, Stadt- und Raumforschung

    completed
    2017
    Am Markt 21, 28195 Bremen, Duitsland
    Bremen
    Germany
  • Innovation Valley Garzweiler

    Due to the planned coal phase-out by 2038 and thus the elimination of a complete industry with many jobs, strong visions of the future already need to be developed today. How can we reintegrate the gigantic areas that will soon be fallow again in a sustainable manner and make them usable?

    Located in the border triangle, our workshop was about developing a vision for the area in and around Garzweiler. The main goal here was to move away from the current linear to a circular economy. The starting point of the concept was the question of how we can draw a strong vision of the place that addresses its complex issues: What does innovation need? What will energy production look like in the future? How can we restore the immensely damaged ecosystem and reconnect the fragmented biotope network? And what do the municipalities and residents of the region need? How can all these aspects be thought of in a cycle and thus map a strong, sustainable system?

    To give answers to all of these questions, the concept provides for the creation of an innovation network from three well-developed commercial locations in Jüchen, Jackerath, and Frimmersdorf, which tie in with existing plans. The conversion of the Frimmersdorf power plant, which is otherwise to be demolished (planned paralysis in 2021), creates a supra-regional innovation hub and acts as a gateway to the region. Its huge pre-built areas serve as a playground for start-ups as well as established companies. The power plant is a visual reminder of the cultural heritage and the important past of the region, but on the other hand, shows the big step forward towards a sustainable future. The pioneering spirit that has prevailed for decades is being rethought and translated into 2035.

    Large contiguous recultivation areas for industrial agriculture feed electricity into the local grid through additional use for wind power and PV systems. We are creating ecological corridors (forestry recultivated, natural green structures), which in the future will span between the lakeshore and the forests of the Erft floodplain and, in addition to safeguarding the species network, also represent interesting areas for tourism. Thus the economic situation of the region is strengthened. They are lined with laboratory areas: small-scale fields and garden structures on which circular agriculture is researched, tested, and applied.

    Garzweiler is an attractive area, but how can villages be developed, and what offers need to be created? Resource-saving, water management, or new forms of mobility are just a selection of important topics and factors that need to be considered. We propose different lighthouse regions in which to settle. In this way, for example, the new town of Niers am See is created. With the inevitable flooding of the Garzweiler II opencast mine and the resulting lake the size of the Tegernsee, there is an extraordinary opportunity for the realization of a model city with decentralized rainwater management and close networking in the adjacent natural biotopes. As soon as the opencast mining is completed, the respective villages can grow to the edge of the former mine and then have their own waterfront promenades in the final state.

    The concept is rounded off by a cableway that links the various areas.

    in progress
    2020
    Jüchen, Rheinisches Revier
    Deutschland
  • Greater Helsinki Vision. Eight profiles, one unity

    'Holistic Uniqueness' proposes a future vision and a robust
    development framework for Greater Helsinki, Finland. The
    region is globally positioned as the interface between the EU and
    Russia. A high-velocity train network links Helsinki to the Baltic
    centres, Stockholm, Tallinn and St. Petersburg, establishing a
    transnational connection.

    The Greater Helsinki Region itself is defined as a configuration of eight core areas, each characterised
    by a unique programmatic and spatial profile. Based on
    the incorporation of global future developments (like energy
    shortage, demographic change etc.) and existing local potentials,
    the profiles act as concepts for sustainable development -
    ensuring global competence and creating local identity at the
    same time. A specific urban form and structure are proposed for
    each area, strengthening the programmatic profile and creating
    diverse relations between urban and green spaces. Within
    this metropolitan configuration, each area will offer something
    unique. Therefore they are linked not only by a sophisticated
    transport system but more importantly by complementation of
    each other.

    Idea
    2007
    Pohjoisesplanadi 11–13
    00170 Helsinki
    Finland