From Mythical Bird to Kilometres of Seawall
Jakarta's northern coast faces a compounding set of pressures: the land is sinking, rivers discharge into an already strained drainage system, and tidal flooding regularly overwhelms low-lying neighborhoods. For a period, the proposed answer to all of this took a spectacular form. Planners envisioned a vast offshore structure shaped like a Garuda, Indonesia's national symbol, that would simultaneously act as a seawall, a reservoir system, and a platform for new urban development. The image was striking. The reality proved far more complicated.
The proposal originated within the National Capital Integrated Coastal Development (NCICD) framework, which the Indonesian government outlined in a 2015 executive summary. That document described Jakarta's coastal problem as one of insufficient space for water retention and proposed an offshore dike and reservoir system. The plan folded together coastal protection, water management, land reclamation, transportation infrastructure, and economic development into a single framework, a combination that academic researchers have since described as a form of "hyper-planning."
When Flood Protection Produces Developable Land
The planning logic shifted once it became clear that reclamation would generate real estate value. The 2015 NCICD document acknowledged a separate 17-island reclamation program occupying overlapping territory, and proposed integrating their spatial planning while keeping implementation under separate management. A portion of developers' profits from the 17 islands was intended to cross-fund public infrastructure including social housing, pumping stations, and water-retention ponds.
This arrangement linked land production directly to infrastructure finance. The coastline became both a protective edge and a development asset. The risk, as ArchDaily writer Ananya Nayak first reported, appears when flood protection and land production begin to compete within the same planning framework rather than reinforce each other.
Golf Island, built on reclaimed territory, illustrates what that competition can look like on the ground. The development combines residential clusters, a marina, commercial spaces, and leisure facilities within a controlled waterfront environment. It is selective in its accessibility and economically differentiated from the communities that previously relied on the same coastal waters.
Fishing Communities and Ecological Costs
Jakarta's northern coast was never an empty edge. Fishing communities in areas such as Kamal Muara and Muara Angke have long sustained livelihoods through fishing, mussel cultivation, salted-fish production, and coastal trade. Research conducted between 2017 and 2023 using oral histories, group discussions, and community-led walks documented how reclamation changes territorial access and produces new forms of dispossession for these residents. For many, the threat of displacement arrived alongside, and sometimes ahead of, the flooding the infrastructure was meant to prevent.
Reclamation has also degraded mangrove ecosystems in the Muara Angke area. Those mangroves previously provided natural protection against waves, abrasion, and tidal flooding. Their loss is a reminder that engineered infrastructure can weaken the ecological systems that were already doing protective work.
The Garuda Is Gone; the Problem Remains
The Garuda image has disappeared from planning documents. What remains is a more incremental approach: seawalls, dikes, and pumping systems built in sections under provincial responsibility. At a larger scale, Indonesia's Ministry of Public Works reiterated plans in 2025 for a Giant Sea Wall along the northern coast of Java, with studies covering a potential route from Cilegon to Gresik at an approximate length of 946 kilometres.
The ambition has not shrunk. Only the imagery has changed.
Why It Matters for Hosts
Independent hospitality operators in North Jakarta and the surrounding coastal districts should pay close attention to ongoing NCICD construction and any future Giant Sea Wall planning processes. Infrastructure projects of this scale affect road access, neighborhood character, and the communities that give coastal areas their texture and appeal. Hosts who understand the planning context, including which areas face active reclamation or seawall construction, can communicate honestly with guests about what to expect and position their properties relative to the changes rather than being caught off guard by them.
The details in this post were first reported by Ananya Nayak for ArchDaily, published September 8, 2026.
First reported by archdaily.com.