The body of a fifth person was pulled from the rubble, Netcare 911 spokeswoman Santi Steinmann said.
An eighth injured person was taken to hospital. Earlier, paramedics said four people were killed and seven injured when the house they were building collapsed on them.
Nine people were believed to be trapped under the collapsed house.
— Maroela Media (@maroelamedia) August 18, 2014
Rescuers were working on freeing them. The cause of the accident was unknown.