The Tokyo Metropolitan Government Bureau of Waterworks plans JPY 469.2 billion of capital spending over FY2026 to FY2028, according to its Management Plan 2026, published on 30 March 2026. That averages JPY 156.4 billion a year, about 18% above the JPY 132.4 billion actually spent in FY2024.
A rising curve
Planned spending starts at JPY 149.4 billion in FY2026 and rises to JPY 162.6 billion in FY2028. Bond issuance is planned to climb from JPY 66,892 million to JPY 75,409 million over the same years, a three-year total of JPY 215.7 billion. Tariffs are to stay at their current level.
The delivery gap
Past plans have not been spent in full. The Bureau delivered 93.6% of planned capital spending under its Management Plan 2016 and expects 91.9% under the Management Plan 2021, which ended with a FY2025 budget of JPY 152,821 million. The new plan acknowledges continued rises in prices and wage costs.
Where the money goes
The largest items are plant renewal and earthquake resilience. Only 14% of purification capacity was seismically reinforced at the end of FY2024, against a target of 76% by FY2035. Two alternative plants come first: a rebuilt Sakai plant, where an Obayashi-led joint venture won the first advanced treatment construction contract in March 2025, and a new Upstream Purification Plant. Survey and design for renewing Higashimurayama starts in FY2029.
What it means for suppliers
Construction, design and equipment are tendered electronically through the metropolitan government's system, while plant and customer operations are moving to Tokyo Water Co., Ltd. under performance-based contracts introduced in FY2025.
Which projects are open, emerging or already awarded, how to register and where to focus first are set out in the full brief. The full report, Tokyo Metropolitan Government Bureau of Waterworks: Utility Account Brief, is available for USD 499. For a free overview, read the Tokyo Metropolitan Government Bureau of Waterworks Utility Snapshot.