In November 2025, lawyer Martinus Siki met Erwin at a café in Kebayoran Baru, South Jakarta, where he was shown documents concerning land certificate processing for Kencana Jayaproperti Agung, a subsidiary of Summarecon Agung. The land in question spans 65 hectares in Nagrak village, Sukaraja subdistrict, Bogor Regency, West Java, and is the subject of a property dispute between Kencana and the Mamesah family, whom Martinus represents as legal counsel.
Did You Know? The disputed 65-hectare property involves 12 building use rights (HGB) certificates that were originally issued in 2015 by the Bogor Land Office, an agency later renamed Bogor Land Office I in 2022.
Land Dispute Involves Summarecon Agung Subsidiary and Mamesah Family
Kencana Jayaproperti Agung claims ownership of the 65-hectare property through 12 building use rights certificates issued by the local land authority in 2015. Meanwhile, the Mamesah family asserts its own competing claim of ownership over the exact same acreage in Bogor Regency. Martinus stated that during their initial encounter in South Jakarta, Erwin introduced himself as a person handling the subdivision of Kencana’s building use rights certificates.
Erwin told me he was a special staffer to Nusron Wahid,
Martinus said in Bogor on Wednesday, September 23, 2026, referring to the Minister of Agrarian Affairs and Spatial Planning and Head of the National Land Agency (ATR/BPN). The meeting between the two representatives ultimately produced no resolution to the competing claims over the West Java real estate.

Legal Actions and Electronic Blocking Requests at Bogor Land Office I
Following the failed talks in South Jakarta, the heirs chose to escalate the matter through official legal channels. They filed a formal lawsuit with the Bandung Administrative Court to challenge the administrative status of the disputed property records. At the same time, the family requested that Bogor Land Office I block the certificates associated with the 65-hectare tract.
According to Martinus, Bogor Land Office I Chief Sontang Coin Manurung advised the heirs to submit their blocking request electronically so that the agency could process the administrative restriction immediately.

Parties and meetings in the land dispute
Who are the parties involved in the Bogor Regency land dispute?
The dispute pits Kencana Jayaproperti Agung, a subsidiary of Summarecon Agung, against the Mamesah family, who claim ownership of the 65-hectare property located in Nagrak village, Sukaraja subdistrict.
When and where did the lawyers meet to discuss the property records?
Lawyer Martinus Siki met Erwin at a café in Kebayoran Baru, South Jakarta, in November 2025, after which Martinus recounted the interaction during a statement in Bogor on September 23, 2026.
What steps did the heirs take after their meeting produced no resolution?
The heirs filed a lawsuit with the Bandung Administrative Court and asked Bogor Land Office I to block the certificates, following advice from office chief Sontang Coin Manurung to submit the blocking request electronically.