Toyonari Airfield

The primary reason for closure was economic, stemming from the bankruptcy of the operating company. Contributing factors likely included financial difficulties, persistent noise complaints from residents in the surrounding area, and a fatal accident involving an ultralight aircraft in May 2008, which damaged the airfield's reputation and likely increased financial and regulatory pressures.

The site has been completely redeveloped and is no longer recognizable as an airfield. Shortly after its closure, the land was repurposed for renewable energy. It now hosts the 'Togane Mega Solar Power Plant,' a large-scale solar farm that covers the entirety of the former runway and airfield grounds. All aviation infrastructure, including the runway, hangars, and club facilities, has been demolished.

Opened in 1989, Toyonari Airfield was a notable private general aviation facility in Japan's Kanto region, a rare hub for recreational flying relatively close to the Tokyo metropolitan area. It was operated by the Togane Toyonari Flying Club and catered specifically to ultralight aircraft (ULPs) and motor gliders. The airfield featured a single unpaved runway, approximately 550 meters long and 30 meters wide, with a 16/34 orientation. It served as an important base for flight training, recreational flights, and the broader light aviation community in the region for nearly two decades.

Zero. There are no plans or prospects for reopening Toyonari Airfield. The land has been permanently repurposed for industrial solar energy generation, making any return to aviation activities at this location impossible.