Cities Initiative Forum Connective Spaces in Berlin: Blurred Lines

Building design

Editor-in-chief of Topos magazine

The success of the cities of the future depends on the extent to which the existing professions, or more precisely the professionals working in them, are able to transcend the boundaries of their disciplines and ways of thinking.

What makes urban space accessible? What are the keys to ensuring that residents and visitors alike make it their own and use it? How can green infrastructure promote the greatest possible openness of public space? And finally, what can technological innovations do to transform cities into truly inclusive places? The Cities Initiative Forum Connective Spaces, hosted by Topos, German architecture magazine Baumeister and lighting specialist Schréder, explored these crucial questions and sparked lively debates between four participants from very different backgrounds: landscape architect Leonard Grosch, architect Jan Liesegang, academic expert Undine Giseke and Schréder top manager Ernst Smolka. However, they all agreed on one point: the success of the cities of the future depends on the extent to which the existing professions, or more precisely the professionals working in them, are able to transcend the boundaries of their disciplines and ways of thinking.

The forum, which took place as part of this year’s Metropolitan Solutions Conference in Berlin, is part of the “Baumeister Topos Cities Initiative”: launched in 2015, it highlights a variety of aspects of urban design, planning and development in events and publications. In 2016, the focus of the initiative is on connectivity. When it comes to connecting spaces and networking people, the first thing that comes to mind is technical infrastructure. Dr. Ernst Smolka, Managing Director of Schréder GmbH, showed how new modular technologies such as Schréder’s “Shuffle” can trigger a change in the perception of lighting solutions in an urban context: The luminaire no longer functions merely as a tool for illuminating a space. Instead, it becomes a complex interactive instrument that integrates a variety of different functions that meet the demands that today’s citizens will increasingly place on public spaces and their infrastructure. Access to public WLAN, the provision of electricity and availability as a security device are just three examples. It is therefore not surprising that great attention is being paid to the beacons of the future and their ability to provide the resources and services demanded by city dwellers.

Indeed, infrastructure is only one aspect from which the concept of connectivity can be viewed. Leonard Grosch, Partner at Atelier Loidl Landschaftsarchitektur, Berlin, explained how modern urban parks such as the Park am Gleisdreieck in Berlin by Atelier Loidl aim to bring people of different cultures and backgrounds together in a subtle, modern and contemporary way – and how this central goal influences a designer when planning. He emphasized that the elaborate participatory process that preceded and accompanied the planning phase for Gleisdreieck enabled the landscape architects to better understand what this space, which was to become a park, actually means to people. Even if the discussions easily frayed into questions of detail and many of those involved clung to the romantic railroad scenarios that once characterized the Gleisdreieck, Grosch emphasized that the participation of citizens and other stakeholders can significantly change the design of a place for the better. In this process, designers and landscape architects have to reconcile the demands of the citizens, the aesthetic qualities of the space and its potential for urban connections and the surrounding area.

Removing boundaries between professions

Jan Liesegang, architect at Raumlabor Berlin, would certainly agree. Together with Undine Giseke, Professor of Landscape Architecture and Open Space Planning at TU Berlin, he discussed the question of when exactly participation should be incorporated into the planning process. Both emphasized that an early start promotes mutual understanding and trust between planners and future users. When asked whether citizens today are willing to actively support and influence spatial change processes, Giseke and Liesegang came to the same conclusion: the willingness of citizens to participate is greater than ever before. In fact, Liesegang and Giseke believe that architects and landscape architects should work as closely as possible with manufacturers and construction companies that develop connective solutions. Not only to find adequate products for such solutions, but also to assess their impact on urban culture in the short and long term. Liesegang, Giseke, Grosch and Smolka share the conviction that the more experts break down the boundaries between their professional fields and instead clear the way for new combinations of expertise and creativity, the more inclusive the city of the future will become. And the more people will benefit from this development.

You can find out more about the Cities Initiative Forum Connective Spaces here.

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Building with systems: The Baumeister in August 2022

Building design
In August, B8 "Building with systems", we look at residential construction on a larger scale. You can read more about the individual projects here. The cover photo of B8 is by Hendrik Lietmann

The cover photo of B8 is by Hendrik Lietmann, Ostkreuz.

Better big? Residential construction on a larger scale does not usually have a good reputation. However, it is clear that new living space is needed, especially in cities. In addition, the aspect of sustainability in construction is becoming increasingly important. You can find out whether large-scale residential construction can offer a solution to these challenges in the August issue. Read more in the editorial by Editor-in-Chief Fabian Peters.

Better big? Residential construction on a larger scale does not usually have a good reputation. However, it is clear that new living space is needed in cities in particular. In addition, the aspect of sustainability in construction is becoming increasingly important. You can find out whether large-scale residential construction can offer a solution to these challenges in the August issue. Read more in the editorial by Editor-in-Chief Fabian Peters.

Lack of living space

“We need to build more apartments!” This is apparently the majority opinion among politicians. The not-so-new German government has taken up this goal and written it into the coalition agreement. “We must hardly build any more, if at all”, say climate researchers and environmental activists, referring to the enormous amounts of energy consumed in the process. One thing is certain: If the answer to the lack of living space in metropolitan areas, especially affordable living space, can only be new construction, then small apartment buildings or even single-family homes will not be an option. We need to plan and build in large formats. And as little energy as possible must be used in the process. This can be achieved by using sustainable materials and building as efficiently as possible. Industrial construction methods could play a key role in the future.

The fate of large buildings

Industrial construction? For many, the images of large housing estates in both East and West immediately spring to mind. In West Germany, these neighborhoods were the epitome of social hotspots – and in many cases still are today. Much has now been achieved through neighborhood management. Nevertheless – whether Chorweiler, Neuperlach, Gropiusstadt or Märkisches Viertel, these are addresses that still have a stigma attached to them. Can new large-scale residential buildings escape the fate of their predecessors from the sixties and seventies? Or will we have a new Pruitt-Igoe moment in 25 years’ time?

Building on a larger scale as a solution to the lack of living space?

For this issue, we looked at different concepts for large-scale residential construction, talked to experts about technologies and strategies, and looked at projects and experiences in our neighboring countries France, Austria and the Netherlands. Whether we want to create more living space in the future in the form of large-scale residential construction and to what extent – this is a discussion we will have to have intensively in the coming years.

The B8 is available in our online store.

Our South Tyrol issue was published in July, in which we looked at new buildings in rural areas and the conversion of historic buildings. Read more here: South Tyrol

Roger Boltshauser: Plea for earth building

Building design
An exhibition on Roger Boltshauser in Stuttgart's Weißenhofsiedlung in March and April shows his exploration of earth building. Sketch: Roger Boltshauser

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An exhibition on Roger Boltshauser opens in Stuttgart’s Weißenhofsiedlung at the beginning of March. His work combines art, design and building as well as a passion for clay as a material.

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“If you could eat it, you’d call it superfood.” This is how the organizers whet the appetite for the exhibition on Roger Boltshauser and his clay architecture. It should be sufficiently well known by now that clay is a moisture buffer and fire protection, has a balancing effect on the indoor climate, keeps wooden structures dry, can be found almost everywhere in the world and is easy to work with. And yet we cannot talk enough about this building material and promote it.

An exhibition in Stuttgart does the same and shows the work of Swiss architect Roger Boltshauser, who works a lot with clay construction. For him, it is “a kind of fundamental experience” that still spurs him on today, makes him courageous, but also critical of all conventions and constantly drives him to find new solutions. Boltshauser then became known to a wider circle in 2008 when he and Martin Rauch built the latter’s single-family house from rammed earth in Vorarlberg (Baumeister 7/2009). At the time, it was still said that they were building “at their own risk”, a test building. The realization required ten to twenty times less energy than a conventional concrete or brick building. However, the amount of work involved was very high.

Some clients are now also enthusiastic about earth building, and a few larger earth buildings have already been built – such as the Ricola Herbal Center by Herzog & de Meuron or the Alnatura office building by Haas Cook Zemmrich. Boltshauser is working on a number of promising research projects and is also planning large buildings made of rammed earth. In his opinion, the future belongs to intelligent hybrid constructions. His colleague Martin Rauch is convinced that the next decade will be an era of earth building. It brings a new aspect of responsibility to planning and building – “simply building, putting perfectionism into perspective”, as he puts it(Baumeister 6/2021).

In this respect, one can never make enough pleas for earth building – as the architect will certainly do in his opening speech at the Weißenhofsiedlung in Stuttgart next Wednesday. The exhibition on Boltshauser aims to show that in his work, art, design and construction combine in “constant parallel processes”. Some of his collage sketches will therefore also be on display. Ultimately, it is clear that Roger Boltshauser is concerned at all levels with the search for an authentic answer.

From 2 March to 23 April 2023 at the Architekturgalerie am Weißenhof | Stuttgarter Weißenhofsiedlung, Am Weißenhof 30, Stuttgart | Curated by Roger Boltshauser with Atelier Andrea Gassner | Organized by Kyra Bullert | Exhibition design: Atelier Andrea Gassner | Vernissage: Wednesday, 1 March 2023, 7 pm: Lecture by Roger Boltshauser in the lecture hall Neubau 2

By the way, also in Stuttgart: an eyewear store with panache