South of it, at the confluence of the Wuhle with the Spree, there was a tourist restaurant called "Sadowa"–after Sadová, the decisive battle of the Austro-Prussian War–which gave the station its name.

Following the upgrade, the station was also extended and it was given typical Berlin platform canopies and a glazed, “greenhouse” entranceway (Gewächshausgang).

The Outer Freight Ring (Güteraußenring, GAR), which crossed the main line on a bridge structure, was built immediately west of the S-Bahn station in 1940.

From July 1948 diesel railcars were used to operate suburban services running from Kaulsdorf over the so-called VnK Railway and the Berlin outer ring to Grunau.

A station was established at the crossing with the Berlin-Frankfurt (Oder) line for transfers, but no direct route was built between the two platforms.