His lawyer Jane Northwood said there was a bail address available but had to be checked by police before her client's application could be heard.
Community magistrate Lauolefale Lemalu rejected a late bid for name suppression.
It is alleged the complainant was visiting a family member at the home in Botany when the attack occurred around lunchtime.
"The victim was viciously assaulted. She was punched, kicked and stomped on. She was initially in intensive care," said Detective Sergeant John Love.
"Fortunately, her condition has improved slightly and she is now stable. She has facial fractures and other injuries, though, and will remain in hospital."
If found guilty, Harris faces as much as 14 years in jail.