Jakarta's Bundaran HI MRT Station Begins Major Underground Expansion

The heart of Jakarta's central business district is undergoing a vast subterranean transformation. A brand-new 4,439-square-metre Extended Concourse is being built 18 metres beneath Jalan M.H. Thamrin, enlarging Bundaran HI MRT Station into a seamlessly connected, climate-controlled urban hub.

Designed as a non-paid zone — meaning passers-by don't need to tap an MRT ticket to enter — the underground pedestrian concourse will serve as an all-weather urban hallway. Once complete, it will offer direct indoor access through knock-down basement panels to key commercial landmarks: Plaza Indonesia, Grand Hyatt Jakarta, Wisma Nusantara and Pullman Jakarta Indonesia.

The IDR 200 billion expansion, carried out by PT Integrasi Transit Jakarta (ITJ), a subsidiary of PT MRT Jakarta, is timed to welcome Jakarta's 500th anniversary in June 2027, while preparing the network for an expected 6,000 additional daily commuters as Phase 2 northbound routes near completion.

As of July 2026, construction stood at 21.46%, with crews working around the clock to hit a 24.80% target by late August.

"Welcome to the extended concourse area, a project initiated by MRT Jakarta through PT Integrasi Transit Jakarta to expand the service area of Bundaran HI Station by 4,439 square metres," said Yulham Ferdiansyah Roestam, President Director of PT ITJ. "It is planned for completion in May 2027 and will be inaugurated by the Governor in June 2027 to welcome Jakarta's five-century celebration."

Beyond seamless navigation, the expanded underground space will feature 24 lifestyle and retail units, turning a traditional transit interchange into a curated destination for dining, coffee and daily convenience. To keep progress steady without paralysing Thamrin's surface traffic, heavy structural work is done during daytime hours, while less invasive tasks run at night.

Once finished, commuters and pedestrians will no longer have to brave tropical heat or sudden downpours to move between Jakarta's most iconic hotels and luxury shopping landmarks — a major step toward a world-class, walkable city centre.

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