We see our firm as a community. A community composed of many different talents and disciplines – from architects and interior designers to urban developers and spatial planners, process designers, communication designers and journalists.

Our team is diverse and international. Openness and tolerance characterise the way we work together. We share the desire to create spaces that will endure today and tomorrow, enrich our lives and are in harmony with our environment.

Regular talks, professional development courses and group excursions are a compelling force. We regard the exchange with colleagues from other specialist disciplines as a matter of course. This gives us the opportunity to share knowledge and discuss current issues and requirements.

Understanding and reducing our own carbon footprint
Every day, we design sustainable buildings and neighbourhoods that emit as little CO₂ as possible. But we, as a firm, must also take a critical look at ourselves and take action. With just under 100 employees across two sites, however, this is no easy task. In 2021, we calculated our own greenhouse gas footprint for the first time and identified the areas where we consume CO₂ and in what quantities. We have offset the emissions we could not prevent – bearing in mind that this is only a last resort.

Our transport Of the 122.1 tonnes of CO₂ we emitted in 2024, 69.1 tonnes – more than half – were attributable to transport: staff commuting (28.0 t) and business travel, including overnight stays (41.1 t). Face-to-face interaction is fundamental to our work – and at the same time our greatest lever for reducing emissions.

Our measures
We produce an annual greenhouse gas emissions report and take action: shifting to rail transport, no domestic flights without a valid reason, electrifying our vehicle fleet, subsidising travel passes, offering bike leasing schemes, and increasing the use of digital formats. Mobility remains a necessity – but it can be shaped. There is no perfect solution, only a continuous effort to do better.
Translated with DeepL.com (free version)

You can view our carbon footprint here.

The history of asp Architekten dates back to the 1950s with its predecessor practice Siegel-Wonneberg Partner and the planning group of Mete Arat (Arat-Haisch-Volz). Today’s practice is the direct successor to ‘asp’ (Arat, Siegel + Partner), which was founded in 1992 by Mete Arat and Henner Siegel. 2006 übernahmen Cem Arat, Karsten Schust und Jochen Siegel die Führung des Büros.

In 2015, after many years of collaboration, Markus Weismann with his practice UMnet urban matters joined asp Architekten, adding urban development to the focus of our work. Due to our wide range of activities, over the years we have grown into a firm with five managing partners: Cem Arat, Markus Weismann, Suna Konyalioglu, Eberhard Becker and Dimitrios Kogios. The individual partners’ different specialisations and strengths form the basis for the cross-scale portfolio of our practice.

The strategic level is complemented by 16 associates who are involved in various areas of expertise, such as sustainability, climate adaptation, artificial intelligence and knowledge transfer. The multi-layered office structure enables us to react quickly and agilely to future issues.