Jakarta's Subsidence Monitoring & Groundwater-Free Zones

🤖 AI-generated summary · 🔎 Last verified

This overview was generated with AI from the public sources listed below and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.

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The ground was already sinking more slowly before the pumping ban took effect in 2023, so the rule inherits a trend it cannot claim. Of 496 audited buildings, 70 still drew on wells as well as pipes.

Evidence🏛️ Official
what does this mean?The strongest source is the operator's or the city's own reporting — an official report, dataset or press release. It grades who did the looking — not how well the project went. All four grades →
Scale🏙️ City-wide

Part of 1001 Smart Cities — 1,167 documented projects · 🏙️ 10 more in Jakarta · 💧 Water guide · 🌱 Environment projects

Geodesists at Bandung Institute of Technology have tracked Jakarta sinking since the 1970s using levelling, GPS and InSAR, measuring typical rates of 3-10 cm a year between 1974 and 2010 and far more in a few North Jakarta bowls, driven mainly by groundwater pumping. Governor Regulation 93/2021, in force since 1 August 2023, bars buildings over 5,000 m2 or eight floors inside nine designated areas and twelve road segments from pumping, and requires calibrated meters reporting into the water agency's system. By February 2024 the agency counted 396 of 496 audited buildings on piped water; 70 still used both.

Live 📅 since 2021

📊 Impact

Of 496 qualifying buildings audited by February 2024, 396 had switched to piped water, 70 still used both sources and 5 remained on groundwater alone; the remaining 25, per the agency's figures, relied on tanker deliveries or had not reported their supply. PAM Jaya piped coverage reached 80.24% of Jakarta at the end of 2025.

🎓 Lesson

Jakarta's subsidence had already slowed before the ban commenced — peer-reviewed InSAR puts the 2015-2020 rate near 3 cm a year — so the rule inherits a trend it cannot claim to have caused. A pumping ban is only as strong as the pipe next to it: buildings still fall back on wells when supply falters.

Sources

↗ JDIH DKI Jakarta — Governor Regulation 93/2021 on groundwater-free zonesPrimary text. Enacted 22 October 2021, promulgated 26 October 2021, in force 1 August 2023. Sets the building criteria (5,000 m2 floor area and/or 8 floors), the obligation to install calibrated automatic water-recording devices on inlet lines integrated with the Water Resources Agency's automatic abstraction information system, water-balance reporting, and the sanctions ladder from written warning to licence revocation.
↗ Pemprov DKI Jakarta — efficient water useOfficial city page confirming the ban took effect 1 August 2023 under Governor Regulation 93/2021, that it covers nine areas and twelve road segments rather than the whole city, and giving the city's own subsidence figures: 1-15 cm/year in some areas, 20-28 cm/year at certain locations.
↗ Abidin, Andreas, Gumilar and Brinkman — risk and impacts of land subsidence in Jakarta (Proc. IAHS 372, 2015)Peer-reviewed, open access. Source for the measured rates with their period: typical 3-10 cm/year across 1974-2010, spatially and temporally variable, measured by levelling, GPS and InSAR; identifies excessive groundwater extraction, construction loading and natural consolidation as the causative factors.
↗ Wu, Wei and D'Hondt — subsidence in coastal cities observed by InSAR (Geophysical Research Letters 49, 2022)Peer-reviewed InSAR study of 99 coastal cities over 2015-2020. Supports the counterweight in the lesson: Jakarta's rate fell to roughly 3 cm/year in that window, before the 2023 commencement date. Publisher blocks automated fetching; content verified via search and the report below.
↗ Phys.org — Asia's coastal cities sinking faster than sea-level riseFetchable report on the Wu et al. paper, carrying the authors' direct statement that subsidence rates in Jakarta and Shanghai have slowed significantly, likely due to reduced groundwater extraction implemented as government regulations, and giving Jakarta's 2015-2020 rate as about 3 cm/year.
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↗ detikNews — high-rises still found using groundwater (27 Feb 2024)Source for the compliance figures, attributed to the Jakarta Water Resources Agency: 496 qualifying buildings evaluated, 396 on piped water, 5 still on groundwater alone, 70 using both, and buildings still falling back on wells during supply interruptions.
↗ detikNews — piped water coverage reaches 80.24% in 2025 (26 Jan 2026)Dated utility figure for piped-water coverage: 80.24 percent at end-2025 across 1,178,022 connections, a rise of 12.59 percentage points since 2023 against 10.77 points over the whole 1998-2023 period.
↗ Jakarta Globe — Constitutional Court confirms Jakarta is still the capitalSupports the Nusantara clause in the lesson: as of the May 2026 ruling Jakarta remained the legal capital, with transfer to Nusantara pending a presidential decree.
📎 Cite this project

1001 Smart Cities (2026). “Jakarta's Subsidence Monitoring & Groundwater-Free Zones” — Jakarta, Indonesia. The Smart City Atlas. https://1001smartcities.org/projects/jakarta-subsidence-groundwater/ (last verified 2026-07-26). Data: CC BY 4.0.

The underlying data is free to reuse with attribution — see the open data page.

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