Mitsui Fudosan trials a station-front "street plaza" ahead of its Tama outlet rebuild

Mitsui Fudosan has signed a joint research agreement with Hachioji City and Tokyo Metropolitan University to run a social experiment turning the forecourt of Minami-Osawa Station, on the Keio Sagamihara Line, into what the three parties call a michi-hiroba (a lingering "street plaza") rather than a space people simply pass through, the developer said.

The trial runs from 19 September to 3 November, during which the station forecourt will be fitted with benches, tables and play equipment, test paving materials, and a run of community events, according to the announcement. The three organisers said they will use the period to study pedestrian safety, how effectively the space encourages people to linger and interact, and foot-traffic patterns — data that will also feed a decision on whether to designate the site under Japan's hokomichi system, a road-law category created to give pedestrian space priority over vehicle through-traffic.

Two food festivals are scheduled inside the trial window: a gyoza and fried-chicken festival from 20 to 22 September, and a bread festival marking its fifth year from 31 October to 3 November. Mitsui Fudosan tied the experiment explicitly to its own reconstruction of Mitsui Outlet Park Tama Minami-Osawa next door, where the developer is rebuilding for a spring 2028 reopening.

The timing makes the plaza trial look less like civic goodwill and more like part of the mall's own redevelopment brief. An outlet park competes on dwell time as much as on tenant mix, and a station forecourt redesigned to give shoppers a reason to linger before they even reach the gate is public-realm infrastructure doing retail's job — a cheaper, earlier lever than the mall itself, and one Mitsui Fudosan can pull two years before Tama Minami-Osawa reopens.