Paul Kelaita: He was arrested in his undies in scenes that brought Bondi to a standstill. Now vile details have emerged about how he allegedly raped a woman for three hours

A man arrested on a Bondi rooftop in his underwear after a sprawling manhunt allegedly raped a woman and kept her captive during a terrifying three hour ordeal.

Paul Kelaita, 45, was arrested by plain clothes police detectives on Wednesday after allegedly fleeing from officers in Bondi shortly before 4pm.

Described as having multiple behavioural disorders, including mania, Kelaita did not apply for bail at Waverley Local Court on Thursday as he faces 28 charges.

Court documents revealed the Harrington Park man allegedly forced a woman into her Land Rover at Killarney only two weeks before his arrest.

Police allege Kelaita kept the woman captive for three hours, during which time he raped her, forced her to touch his penis, and kissed her without consent.

Keliata, who also allegedly stalked the woman before and after, is further alleged to have 'placed his flaccid penis on (her) vagina' during the incident.

Magistrate Ross Hudson described Keliata as suffering a range of behavioural disorders, which he would receive treatment for while in custody.

'(They are) ranging from adjustment disorder, major depressive reaction to schizoid personality, OCD, and other issues ... manic behaviour,' he said.

Kelaita was supported in court by his father and a woman who sat quietly in the back of the room and refused to answer questions leaving court.

The alleged manhunt began shortly before 4pm when police approached Kelaita on Roscoe St in Bondi in relation to the alleged sex offences.

Kelaita allegedly fled on foot from officers, sparking a massive alleged manhunt involving the police helicopter that also shuttered a local daycare centre.

He was eventually arrested by police about an hour later on the roof of a home on Curlewis St in Bondi and was dragged away wearing rugby shorts.

Police allege that during the hour-long incident, Kelaita entered the home of a woman on Curlewis St with the intent to evade police before assaulting her.

Local residents, who watched as the manhunt unfolded, reported to local media seeing Kelaita using their homes as hiding places.

In total, Kelaita is charged with four counts of aggravated sexual assault while depriving liberty and eight counts of stalking and intimidation.

He further faces three counts of sexual touch without consent, one of inciting another person to touch them without consent, and negligent driving.

He separately faces a charge of common assault, and three counts of entering a building to commit an indictable offence and entering enclosed lands.

Kelaita will reappear before the same court on December 12 on the Sydney allegations and will also front Gosford Court in early February.