Memorial Hall for 2025 Osaka-Kansai Expo Planned to Be Built on Yumeshima Artificial Island Where Intl Event Took Place

The Yomiuri Shimbun

17:25 JST, February 11, 2026

OSAKA — The Osaka prefectural and municipal governments plan to build a tentatively called “EXPO 2025 Memorial Hall” at the site of the 2025 Osaka-Kansai Expo on the artificial island of Yumeshima in Konohana Ward, Osaka, aiming to pass down the legacy of the Expo to future generations, according to sources close to the prefectural government.

The memorial hall will be built near the outside of a 200-meter section of the northeastern part of the Grand Ring, which has been decided to be preserved, the sources said. The hall will include an exhibition space to look back on the Expo and a space for visitors to interact with each other. The new facility will be managed by the city, along with an urban park that will be developed in the area.

The detailed structure of the hall has yet to be worked out. Regarding construction costs, the prefecture and the city will pay part of the costs while they will try to coordinate with the central government and the business community with the possibility in mind that government subsidies and corporate donations will be used to cover the costs as well.

The prefecture and the city hope to use the surplus from the Expo’s operating budget, estimated at up to ¥37 billion, to pay for the management of the memorial hall. They plan to obtain understanding for the project at the central government’s committee tasked with assessing the legacy of the Expo.