Officer Drake Madison says officers responded to Stiviano's home after received a non-emergency call at about 2:50 p.m. Monday.
Madison says officers found broken glass in the entryway of the home but there was no evidence anyone had gotten inside through a door or window.
It's being investigated as an attempted burglary. CBS Los Angeles reports authorities are working to recover fingerprints and surveillance video.
Madison says he doesn't know whether Stiviano was home at the time.