The women identified as Faith Mlonyeni and Esnath Motsi, were attending a church gathering. They died from head injuries while 10 others are still in hospital, four of them critical.
It was not immediately clear what caused the collapse of the building and residents are calling for an investigation.
Domingo Mugwagwa a local resident said: “Church and council officials must be quizzed with other church members describing the collapse of the building as a ‘scandal’.
Rosemary Kamutiga said the building had again collapsed in 2010 and queried why the plan had not been revisited.
Church officials and the town council officials who approve building constructions were not immediately available for comment.