The phrase "same hall" refers to a location or space within a building where two or more people or things are located. It implies that they are in close proximity or sharing the same area. Full definition
She went to Normandy High School and walked the same halls with Michael Brown, who she says was sweet. (fortune.com)
This past January, 50 years after Tambaram, in the same hall where Kraemer and others debated, Christians gathered to commemorate the 1938 meeting and to reflect anew on Christians» relations to other faiths. (religion-online.org)
All components of the conference programme are open to China Fruit Logistica visitors, and take place in the same hall as the exhibition, which is open from 10 am to 4 pm daily. (producereport.com)