Officers believe that the 26-year-old victim was entering her residence when the suspect -- later identified as Jovan Jones, of Marin City -- forced his way in, forced the victim to the floor and demanded money and property, San Francisco police Sgt. Michael Andraychak said.
Police believe that during the robbery, Jones sexually assaulted the victim, Andraychak said.
A 911 call from a neighbor alerted police, and when officers arrived on scene, Jones allegedly jumped off a balcony and fled into the surrounding neighborhood, police said.
A search perimeter was established, and with the help of a helicopter from the California Highway Patrol, Jones was found hiding in the backyard of a residence on Green Street at about 9:20 p.m., police said.
Jones was arrested for burglary, robbery, making threats, rape, false imprisonment and aggravated assault.
Investigators believe the attack was an isolated incident.
Anyone with information about the assault is asked to contact SFPD at (415) 558-5500, or the anonymous tip line at (415) 575-4444.