Unknown people damaged the glazing of all six entrance doors at the Bürgeramt in Berlin-Mitte.
In addition, the slogan “Köpi stays” was sprayed on the building, the police said.
People weren't hurt.
The employees of a security service had heard dull thumps early Wednesday morning.
However, the attackers did not manage to break the glass.
Berlin - The state security determined.
Only last weekend hundreds of people demonstrated against the evacuation of the left-wing autonomous car camp "Köpi" in Köpenicker Strasse in Berlin-Friedrichshain.
The camp is considered to be one of the last symbolic projects of the left-wing radical scene in Berlin.
In June the district court ordered the evacuation of the property with inhabited construction vehicles, which is scheduled for October 15.
dpa