As remains in the middle era of the Asuka period, as many as 46 dug-standing pillar buildings were found when investigations were conducted in 2003, attracting people's attention.
飛鳥時代中期の遺跡としては、2003年（平成15年）の調査で46棟（調査段階）を超す掘立柱建物跡がまとまって検出されたことが話題となった。