Schule Köln-Deutz (SKD)

Following the successful completion of several new school buildings (GU and TU) in Cologne, the Cologne-Bonn and Cologne areas were awarded the contract in December 2022 to build an innovative and high-quality grammar school in cluster construction for around 1,000 pupils in Cologne-Deutz, as well as the supplementary contract in June 2023 to build the neighboring sports complex with two double sports halls one above the other and an office building as a shell development.

The client - Ulrich Beckmann Real Estate (UBRE) – received comprehensive advice from Züblin as early as the planning phase, which was a decisive factor in the award of the contract.

Preliminary work began in mid-2022 with a pre-commissioning of the planning LPH 5 and the foundation. An existing archaeological monument on the site (a Prussian fort from the 19th century) was uncovered and documented by the Roman-Germanic Museum in Cologne.

After the building permit was granted, the earthworks, bored piles, geothermal drilling and shoring work began in October 2022.

The school building has an underground car park with 193 parking spaces in the basement, which is mainly used for the client's office building, which was built on the neighbouring property.
The first floor houses the assembly hall, a canteen with adjoining canteen kitchen, a library, landscaped courtyards and the administrative wing.
The three upper floors each house three cluster areas and science rooms as learning houses, which are connected to each other by a learning boulevard. The contract also included furnishing the laboratories, creating the outdoor facilities and connecting them to the transport and technical infrastructure and providing the necessary planning services from LPH 5.

Special features included the exposed concrete quality SB 3 of the interior walls (approx. 13,500 m²) and the short construction time. As a result, one of our directorate's largest school projects was completed on time, to a high standard and within the agreed budget after a construction period of only around 29 months.

The sports halls belonging to the secondary school were built on the adjacent plot and enclosed by a 5-storey office building as a shell development. In the basement, there is also an underground garage with 57 parking spaces for the office users. The changing rooms and sanitary facilities of the two-storey multi-sports halls, one above the other, were accessed via the 1st and 3rd floors. The adjoining floors and areas are used exclusively for offices.

Sustainability and resource conservation are also key factors in the project. The investor's ideas and the Group's sustainability strategy were also very much in line with each other in this respect. This aspect is therefore also taken into account in the quality and materiality of the buildings (recycled concrete, wood/aluminium windows/PR façades, wooden wall cladding in the interior). The energy supply is mainly provided by renewable energies with a total of 92 geothermal boreholes, each 99 m deep, and 334 PV modules with an output of approx. 134 kWp. The buildings are DGNB-certified.

In addition, the construction site was one of the first in the North Rhine-Westphalia directorate to be certified as a DGNB sustainable construction site.

Certified by the German Sustainable Building Council (DGNB)

Ed. Züblin AG is pursuing several goals with this project: A sustainable construction site organisation, the conservation of resources as well as the minimisation of emissions, responsibility for the health and well-being of the builders, the cultivation of good neighbourliness and, of course, high-quality construction. For this, Ed. Züblin AG was the first company to be recognised by the German Sustainable Building Council (DGNB).

Here you can find more information about the DGNB system for sustainable construction sites: https://www.dgnb.de/en/certification/buildings/construction-site

Selected measures in the project