From cement factory to innovative meeting place: the Bonner Bogen

From cement factory to innovative meeting place: the Bonner Bogen

I remember well the cement factory, which was vacant in the 1990s (we called it the ‘ghost house’), which we had to go around on the bike path to Königswinter. Today, here – on the sunny side of Bonn – it is a very popular meeting place at the weekend. Cyclists take a break here, families use the lawns and play ground, and pubs and restaurants entice you with food and drink.

The history of the Portland cement factory ended in the 1980s. Then began a long and varied process of planning, tendering and competitions to determine what could be built there.

Rhine promenade

Rhine promenade with Portland Cement building in view

Finally, an outstanding example of the transformation of an industrial site was created – and is still being expanded – on a beautiful new Rhine promenade. Innovative architecture, sustainable urban planning and an attractive mix of uses blend well with the converted cement factory, a water tower and the former director’s villa.

Planning and conception

Planning for the Bonner Bogen began in the early 2000s and was overseen by renowned architects and urban planners such as Karl-Heinz Schommer. The master plan envisaged a mix of uses, including office space, hotels, restaurants and residential accommodation. A key element was the integration of the site into its natural surroundings, in particular by taking advantage of its proximity to the Rhine and orienting the buildings towards the river. The architectural design emphasised modernity and high-quality materials, while historical elements, such as the heritage-listed water tower, were preserved and integrated into the new buildings.

Former Portland cement factory

Sculpture “Mother Earth” by American artist Barton Rubenstein

Particular attention was paid to ecological sustainability. The buildings were constructed according to modern environmental standards, with a focus on energy efficiency and the use of renewable energies.

Implementation and establishment

The construction phase began in 2004 and was realised in several stages. One of the first and most well-known buildings is the Kameha Grand Hotel, which opened in 2009. With its ​architecture​ and special interior design, it has become an emblem of the Bonner Bogen. It attracts not only tourists, but also companies for events and conferences.

 

Kameha Grand Hotel

“Egg” by Marcel Wanders

Numerous office spaces were built next to the hotel, which are used primarily by companies in the technology, science and consulting sectors. The combination of modern workplaces, high-quality gastronomy and recreational spaces such as the Rhine Cycle Route makes the location a sought-after place for companies and employees.

The entire area has been easthetically enhanced with the addition of several sculptures including: the sculpture “der Denker” by German artist Dieter W. Meding which sits in front of the headquarters of software developer SER; the sculpture “Mother Earth” by American artist Barton Rubenstein, which sits in front of the restaurant Rohmühle; and the sculpture “Mother Earth”, earmarking the 75th anniversary of the United Nations.

A staircase of national importance

A staircase of national importance

The flight of steps at the Old City Hall has seen better days. Its grand appearances have become rare. Nowadays it only takes centre stage on Carnival Sunday, when the carnival revellers storm the town hall. In addition, there are rare events in which it briefly regains its former grandeur as a big stage. This occurred in 2023, when the Telekom Baskets (Bonn’s professional basketball team) were celebrated by their fans after winning the Champions League. Although there was a good turn-out by the fans, they still did not fill the market square, not unlike the party-goers on Carnival Sunday. It was a completely different scenario when Charles de Gaulle signed the city’s Golden Book on the September 5, 1962. He stepped out onto the staircase together with Konrad Adenauer to a storm of enthusiasm. The market square and the Bischofsplatz were packed with people, who were overflowing into the Sternstraße and the Wenzelgasse. After delivering a seemingly extemporaneous speech in German, the then assassination-threatened French President strode down the stairs and was swallowed up by the crowd, much to the dismay of his security staff.

The steps of Bonn’s old City Hall have seen similar scenes time and again, especially when Bonn was the capital city of Germany. The list of visitors ranged from Theodor Heuss, who addressed the German people from the steps immediately after his election as the first Federal President, to John F. Kennedy in 1963, the Queen Elizabeth of England in 1965, and as late as 1989 when Gorbachev visited. Not all occasions were as spectacular as in the 60s, and over time, state visits became routine. Nevertheless, the steps of the town hall remained something of a stage for the Bonn Republic. The reason for this was mundane: the government district was somewhat remote and, as a provisional arrangement, had no representative assembly area. The market square helped out.

Incidentally, the same applies to demonstrations. Up until the 1980s the Bonn market was the most important demonstration site in the Federal Republic of Germany. The steps of the town hall also played a role there – perhaps most ingloriously on 10 April 1973, when members of a communist splinter group, hidden by a student demonstration against the visit of the South Vietnamese president to Germany, stormed the town hall and smashed its interior. It was only then that, because of the sheer volume, the protests against rearmament had to move to the Hofgarten. They may not have been aware of the meaning of their actions in terms of the carnival. At that time, we lived nearby, and I still remember how the demonstrators, linked arms and running, turned from Suttnerplatz into Rathausgasse, chanting the name of Ho Chi Minh. The rest is history.

The staircase was also the scene of much earlier revolutionary events: on 20 March 1848, for example, Gottfried Kinkel led a procession of citizens, professors and students. Armed with the black, red and gold flag of the democratic movement, he climbed the steps of the town hall and spoke, as Carl Schurz put it, with ‘wondrous eloquence’. Things were less lively on October 24, 1923 when local separatists, under the protection of French soldiers, climbed the steps at 6 am and claimed the ‘Rhenish Republic’. The nightmare was soon over due to a lack of support from the population.

The importance the Bonn market once played, both in front of the town hall and with the town hall steps as a natural stage, has now almost been forgotten. Recently a major radio station, the SWR, stated that de Gaulle gave his speech in the Hofgarten. And Bonn only occasionally remembers the possibilities that the town hall panorama offers. A big festival where the stage covers the old town hall is a wasted opportunity. Nowadays, the people who make the most of the opportunities are the bridal couples who get married at this historic site. They are happy to use the flight of steps for their guests to form a guard of honour, thus preserving some of the charm of the place. It’s just a shame that the delivery truck traffic is increasingly disrupting the beautiful images. This impression may be subjective.