Osaka Officials Sound Alarm on Summer Heat, Housing Costs and Expo Legacy as Council Meets

Osaka City Council wrapped a three-day extraordinary session on Friday with sharper disagreements than usual — and a stack of unresolved questions about how the city spends the 47.3 billion yen remaining in its post-Expo 2025 urban development reserve. Councillors from Naniwa Ward and Konohana Ward clashed over whether that fund should prioritise flood-resilient infrastructure along the Aji River or accelerate the long-delayed social housing programme in Nishinari Ward, where vacancy rates in city-managed blocks have fallen below 3 percent for the first time on record.

The timing matters. Japan's Meteorological Agency recorded Osaka's hottest June since 1961 last month, and heat-related hospital admissions across the city hit 1,847 in the four weeks ending June 28 — a 34 percent jump on the same period in 2025, according to Osaka Municipal Fire Department data released Tuesday. With a brutal heat dome parked over the Kinki region through at least mid-July, public health officials are under pressure to accelerate the rollout of cooling centres before the Obon travel period in August drives visitor numbers back up along Midosuji Boulevard.

What the Experts Are Telling the Council

Osaka City University urban planning professor Hayashi Tomoko, who testified before the council's Environment and Infrastructure Committee on Thursday, told members that the city's current network of 214 designated cooling centres is inadequate for a population where more than 28 percent of residents are aged 65 or older. She pointed specifically to Abeno Ward and the dense low-rise streets around Tengachaya Station, where elderly residents living alone have limited access to air-conditioned public space during afternoon peak heat hours between 1 p.m. and 4 p.m. Her committee submission recommended a minimum of 80 additional venues by August 1, with convenience stores and neighbourhood pharmacies enrolled under a revised Osaka Cool Share programme that the city piloted in 2023 but never fully scaled.

The Osaka Chamber of Commerce and Industry weighed in separately, submitting a nine-page briefing arguing that unresolved road works on Sakaisuji — currently into their 14th month — are costing Minami district retailers an estimated 2.1 billion yen in lost foot traffic annually. Chamber officials want the council to set a hard completion date of October 31 before the autumn tourist season, and at least two opposition councillors signalled they will push for a formal deadline motion when the full council reconvenes on July 14.

Housing, Nishinari and the Expo Fund Fight

The sharpest exchange came when Nishinari Ward representative Tanaka Hiroshi challenged the city's lead development officer over the pace of new public housing at the Sannomiya-Namba corridor redevelopment zone. He cited a May 2026 Osaka City Housing Bureau report showing the average wait time for income-qualified residents seeking a city apartment has stretched to 27 months, up from 18 months in 2023. The housing bureau's position is that construction costs per unit have risen 22 percent since the Expo 2025 build-out drove up labour and materials prices across the Kansai region, making the original budget projections unworkable without either a fund transfer or a revised subsidy formula from the national government.

The Osaka Prefectural Government has so far declined to top up the municipal housing budget, leaving city officials to negotiate with the Ministry of Land, Infrastructure, Transport and Tourism in Tokyo. A prefectural spokesperson confirmed Friday that those talks are ongoing but offered no timeline.

Residents in Taisho Ward, home to a significant Okinawan diaspora community, separately petitioned the council this week over the proposed consolidation of two ward offices into a single facility on Taisho-dori by March 2027. The petition, signed by 3,400 residents, argues the merger will lengthen service queues and disadvantage elderly and non-Japanese-speaking residents who rely on in-person administrative support.

The council's next full session is July 14 at Osaka City Hall on Nakanoshima. The housing budget motion, the Sakaisuji deadline proposal and a first reading of the revised Cool Share expansion plan are all scheduled for that agenda. Residents can submit written comments to the council secretariat through July 10.