Keizer Koopmans is an architecture design office based in Amsterdam. We work in the fields of architecture and urbanism.


It is our goal to contribute to a sustainable built environment with innovative, rational and engaging architecture.

We believe in a strong conceptual vision combined with a realistic approach. We aim for simple but significant solutions.



From our studio in Amsterdam we work on a wide range of projects, from designing a new villa in the Costa Brava to the transformation of an office district into a lively mixed housing district. 

We are makers and researchers. We work in multidisciplinary teams on projects with landscape architects, placemaking, BIM-modellers and visual designers.

Recognition Prize / Europan 15
European architecture competition for young architects.

Juryreport: “The jury praises this design proposal’s strong conceptual approach. At first glance, the project looks radical because of the rigorous park fencing, but the opposite is true. The design team builds on existing structures. The oasis also gives the plan a strongly poetical side.”

Project: Team Brainpark


The office is founded by Wouter Keizer and Ule Koopmans in 2019. Before establishing the practice Keizer Koopmans, Wouter and Ule worked at renowned offices in The Netherlands and Germany. 

They worked on award-winning buildings and international competitions, on Dutch urbanism and German building technology. In these years they gained meaningful experience in all phases of the architecture process. Besides working for clients, Keizer Koopmans works on self-initiated projects through own development initiatives.

Wouter Keizer (1988) graduated together with Ule at the Technical University Delft in 2012. After his graduation he worked on the National Military Museum and several international architecture competitions at Claus & Kaan Architects.

In recent years he has worked as a projectarchitect at Grüntuch Ernst Architekten on a large transformation project in the heart of Berlin. He was responsible for the design and realisation of a big apartment building in ‘Areal am Tacheles’, where he worked in a masterplan together with Brandlhuber+ and Herzog & de Meuron. Wouter also organizes yearly architecture excursions to a.o. Hamburg, Copenhagen and Basel.

LinkeIn Wouter Keizer

Ule Koopmans (1986) graduated together with Wouter at the Technical University Delft in 2012. After his graduation he worked at Mirck Architecture on the realisation of a modern villa with a garden by Piet Oudolf and the PPS Rechtbank Amsterdam at Rob Hootsmans.

In the last years Ule worked at Next Architects on several different scaled projects, ranging from large housing projects in Utrecht and Portugal to an urban analysis for Sloterdijk in Amsterdam. Besides working in architecture offices Ule started his own real estate development company – De Ontwikkelmannen – in collaboration with a contracter and developer. Ule plays a central role in linking different stakeholders from the perspective of design.

LinkedIn Ule Koopmans