Tanjung Timur

Van de Velde enlarged the Kapitein's landholdings by acquiring more land south of Meester Cornelis (now Jatinegara) on the eastern bank of the Ciliwung, thus forming the new private domain of Tandjong Oost.

The doors of the rooms were decorated with carvings of teak with plant motifs; above the main entrance, the ornament was adorned with a crane, symbol of the Craan family.

Willem Helvetius van Riemsdijk had already acquired both high position and wealth notwithstanding his relative youth; at 17 he was the administrator of Onrust Island; and he owned many private domains and sugarcane plantations, among which are Tanah Abang, Cibinong, Cimanggis, Ciampea, Cibungbulan, Sadeng, and now Tandjong Oost.

The latter property, with its lavish landhuis, remained in the van Riemsdijk family until the start of World War II.

[3] The land was improved by Daniel Cornelius Helvetius van Riemsdijk, who farmed in Tandjong Oost until his death in 1860, when the estate passed down to his daughter, Dina Cornelia.

After World War II, the building gained historical significance for the Indonesian Revolution when it became the headquarters of Barisan Pelopor, an underground movement against renewed efforts by the Dutch to repossess Indonesia.

[6] Once the Revolution had successfully established Indonesian Independence, the landhuis was acquired by Haji Sarmili, who converted it into a hotel, then an office building.