This is a building within a 'L-shape' layout scheme that is consisting of two wings where the eastern wing side is facing to "Blenduk" Church and northern wing side positioned in perpendicular line against "Blenduk" Church site. The eastern wing side is a three-storey building that is placed in a set-back position against the main street and the northern wing side is a two-storey building that is situated more closer to the main street.
The main entry is situated in an internal corner side in-between these two blcks of building and its position is elaborated with the existence of a big roof dome over. The 'L-shape' building configuration creates an internal open spaces and makes everybody who walks in front of the building can properly see the beauty and richness of building facade detailing.
Obviously, this building is another great works of Thomas Karsten, the Dutch Architect who is noted in the history as an Architect who also designed the famous Old Dutch Colonial Building in Semarang City. The building could be identified as the tallest building that prominently found in the middle of old city area. As mentioned in history notes, this might be related with its original function as an Old City Hall during Dutch Colonial Era.