Kalle Neukölln - Transformation from department store to urban destination
The Kalle Neukölln project embodies the transformation of an entire neighbourhood – raw, creative, unconventional and, at the same time, architecturally sophisticated. On the site of a former department store in Berlin-Neukölln, Kalle has emerged as an urban destination that reimagines the interplay between work, culture, dining and community. The unique atmosphere of this project draws on its history and its bold commitment to transformation: where traditional retail spaces once dominated, there is now a vibrant, diverse range of uses that reflects the pulsating character of Neukölln.
A central element of this transformation is the 4,000 m² roof area, which is put to intensive use. Kalle’s roof terrace is far more than just additional usable space. It functions as a vibrant, identity-defining space within the building’s overall concept. As an urban meeting place high above the rooftops of Neukölln, it also houses dining options, making it a key attraction for users and visitors alike. The combination of a culinary experience, a pleasant atmosphere and sweeping views over the city creates a special ambience that invites people to linger. Whether for a lunch break, after-work get-togethers or events – the roof terrace combines enjoyment, socialising and
Project overview
Kalle Neukölln – Roof spaces as the key to urban transformation
Kalle Neukölln is a statement on urban development
REGUPOL sound and drain 22 was chosen for impact sound insulation on the roof surface – a solution that meets the high standards required in terms of comfort, durability and sustainability. The material was specifically designed for outdoor use and is therefore perfectly suited to high-traffic roof areas. It effectively reduces impact sound and provides a noticeable reduction in noise levels in the areas below. In a project such as Kalle, a solution of this kind is a key component in enabling the coexistence of different uses and contributes significantly to the quality of the environment.
Furthermore, the product impresses with its drainage function. Rainwater is reliably drained away, thereby providing long-term protection for the roof structure. This capability is particularly important for heavily used roof areas, as it supports the functionality and service life of the entire structure.
Another key aspect is its mechanical load-bearing capacity. REGUPOL sound and drain 22 withstands high levels of stress – whether from pedestrian traffic, furniture or temporary events. At the same time, the material remains permanently elastic and functional without any loss of performance.
In addition to their technical properties, sustainability also plays a key role. REGUPOL materials consist largely of recycled rubber granules sourced from industrial and post-consumer sources. Recycling these raw materials not only conserves resources but also results in a significantly lower carbon footprint compared with conventional primary building materials. REGUPOL sound and drain 22 thus fits seamlessly into the overall sustainable concept of Kalle – a project that deliberately focuses on future-proof solutions.
Kalle Neukölln is more than just a construction project. It is a statement in favour of urban regeneration within the existing built environment, creative usage concepts and a new understanding of the city. The integration of high-performance, sustainable building materials such as REGUPOL sound and drain 22 underlines this ambition and demonstrates how technical quality and architectural vision can go hand in hand.
In this way, Kalle’s roof area becomes not just a functional component, but a vibrant space – underpinned by an invisible yet crucial foundation: a well-thought-out acoustic solution that combines comfort, protection and sustainability.
