Eastern suburbs lothario and "playboy rapist" Simon Monteiro will be back on the streets within a month after being granted parole, despite his victims' fears that lives could be in danger.

Monteiro, who has served almost 10 years of a 12-year sentence for the rape and assault of a girlfriend in Bellevue Hill in 2009, will be eligible for parole from January 30 if his post-release accommodation passes review.

A State Parole Authority spokeswoman said Monteiro, who has changed his name from Simon Lowe, would be released under "strict conditions such as electronic monitoring, drug and alcohol testing and psychological counselling".

"He will remain under strict supervision until his maximum sentence expires in April 2020," the spokeswoman said. "The offender will be required to live at an approved address and not visit the local council areas of Randwick City, Waverley and Woollahra."