Located in the Berlin-Mitte district, directly opposite the current Berlin Federal Ministry, the new building complements the existing structure of the block while opening it up to its surroundings. The new Federal Ministry of Finance and Finance Academy is a concave 6-floor building, with one floor set back opposite the Detlev-Rohwedder House. Its distinctive shape creates public space along Wilhelmstraße. The curved main facade overlooks a green space marked by trees, linking the Platz des Volksaufstendes von 1953 and the Main Courtyard of the Detlev-Rohwedder House.

Minimising the footprint, the two U-shaped wings of the new building are adapted to the side wings of the existing Post Office building and perpetuate the succession of courtyards, a characteristic urban feature of Berlin. The entrance hall and ground floor form the heart of the Ministry. Immediately adjacent to this, the conference centre forms the heart of the facility on the ground floor. It is surrounded by the entrance hall, which opens onto a green courtyard. The other conference rooms are grouped together on three sides of the large hall on the 1st floor. The dining room is located at the southern end of the ground floor, opening onto the garden. The building's relationship with the surrounding vegetation also guarantees well-ventilated and well-lit workspaces. 

This simple construction is adapted to take into consideration climatic issues thanks to the building's hybrid structure (wood/concrete) and the use of geothermal energy. The combination of a plant screen and curved sunbreakers provides light in winter and effective shade in summer. These features help to minimise the building's energy consumption and limit CO2 emissions during its use.