The death was determined to be suspicious, and investigators were treating the incident as a homicide until determined otherwise.
The cause of death was not immediately known, and the person was not identified.
Officers have responded to the same location for various reasons over the years, according to the Simi Valley Police Department. The large residential lot contains multiple structures and living areas.
The investigation was ongoing, with SVPD as the lead agency working in collaboration with the Ventura County Medical Examiner's and District Attorney's offices. Anyone who believes they may have information related to this investigation is asked to call SVPD Detective Dan Swanson, (805) 583-6969. Anyone wanting to remain anonymous can provide information by calling the Ventura County Crime Stoppers tip line at 1-800-222-TIPS (8478) or you can text "BUSTED" plus your message to CRIMES (274367).