In the heart of Amsterdam, Mecanoo has transformed the De Nederlandsche Bank from a dated 1960s building into a transparent, flexible and publicly-oriented financial headquarters. The logic of the project is not demolition but adaptation: a reorganisation of spaces and an upgrade of systems that have enabled the building to meet ambitious sustainability objectives—WELL Platinum and BREAAM Outstanding.
Original design
Designed by Dutch architect Marius Duintjer in 1968, the original complex consisted of a low-rise perimeter block and a 73-metre-tall office tower. In 1991, a round tower was added to the courtyard and the square block was extended by a storey. Like all banks holding things of financial worth, the building design was necessarily inward-looking, designed for security and control rather than transparency.
Renovation
When the bank decided to move gold reserves and banknote operations to Zeist, they also saw an opportunity to transform the building into a space that both the bank and the public could enjoy. The renovation logic extends from here. It retains the concrete frame and massing, and focuses on reprogramming the interior around historical elements that remain intact.
New floorplan
The design removed the gold vault and the surrounding floor plates, bringing light deep into the interior. It also removed the round tower, whose modular design allowed for straightforward dismantling and reuse of materials. The courtyard has been transformed from a parking area to an urban garden called Frederiksplein (Frederik’s Square).
Public spaces
The spaces are organised within this new floorplan. Public access is concentrated to the lower level with entry through the new courtyard. Where the gold vault and treasury once stood, visitors can now experience exhibitions and interactive games relating to money, the economy and DNB. There are two auditoriums for public lectures and school groups, alongside a reception desk-cum-coffee bar with seating that spills out into Frederiksplein.
Semi-public spaces
From here, a semi-public area with a soaring atrium provides spaces for impromptu interaction while offering views of the city and connection to office space. The stairwell leads to the restaurant, which overlooks the Singelgracht. With a wooden deck that extends over the water, the quay has become a popular gathering place for staff and visitors alike. Above, the logistics centre features a rooftop garden for staff with herbs and vegetables while other rooftops have been upgraded to green terraces.
Office spaces
The upper floors, accessible to staff only, sit above. These have been reorganised, replacing the compartmentalisation typical of traditional office design with flexible working areas. Among them is the double-height cash hall, which has been transformed into a meeting centre with breakout zones and a 120-metre-long reading room designed for work, conferences and dinners.
Materials
The design works with, rather than against, Duintjer’s original design. The formal language that made the building so striking when it first opened have been kept, their forms and palette complemented with bio-based and circular materials. Walls have been finished with coloured PET felt and FSC-certified timber. Fluorescent lighting has been replaced with energy-efficient systems, and all technical installations have been relocated to the basements—freeing the panoramic rooms at the top of the tower for special events.
Sustainability
The building works with circularity in mind. Wood from old and diseased poplars from the city has been incorporated into the slatted ceilings. The tower façades have been insulated with a ventilated double-glazed façade with integrated sun shading, while the new ventilation system recovers heat. Solar panels and geothermal energy supply sustainable power, enabling the building to contribute to a climate-neutral city. These efforts have reduced the building’s energy consumption and CO₂ emissions by over 80%.