Tunku Ismail Ibrahim, the eldest son of Johor’s crown prince and regent Sultan Ibrahim Iskandar, is seeking to sell 16.6 hectares (41 acres) of prime land in central Singapore but faces a land betterment charge tax possibly exceeding S$2 billion (US$1.6 billion) [1, 2, 3].

The land includes a key plot acquired in 2025 through a land swap with the Singapore government. The swap allowed new developments to be moved farther from the Botanic Gardens UNESCO World Heritage Site [1, 2, 3].

In March 2026, Tunku Ismail applied to Singapore’s Urban Redevelopment Authority (URA) to develop the land for residential use. He requested rezoning to permit Good Class Bungalows and low-rise housing, a category associated with luxury mansions [1, 2, 3].

The land betterment charge is payable by the landowner when development approval is granted. However, owners can nominate other parties to pay the tax. Ismail wants any buyer of the land to assume the tax payment, causing friction in negotiations with prospective buyers [1, 2, 3].

The Singapore Land Authority (SLA), which administers the tax, declined to comment on ongoing market speculation or private transactions, stating, “We do not comment on market speculation concerning landowners’ intentions or potential private transactions” [1].

Some property developers from Singapore and Malaysia have expressed concern about the tax’s size and the uncertainty it creates for closing the land deal [1, 3]. Meanwhile, Ismail’s representatives reportedly seek buyers internationally, including from the United States [3].

The land sale process faces delays as negotiations continue over who will bear the significant tax burden associated with development approval on the 16.6-hectare site. Further updates are awaited as interest from international buyers is pursued and talks progress [1, 2, 3].