Many researchers have done a number of studies by introducing Territorial Functioning as a crime prevention tool in reducing victimization and fear of crime in a high crime housing area. There are three elements in territorial functioning namely territorial behaviour, territorial markers and territorial attitudes. Most studies that had examined territorial marking emphasized the results in adaptable social interaction primarily by preventing unnecessary social encounters. It is also stated that markers are placed to restrain territorial encroachment. Three elements: territorial attitudes, territorial markers and territorial behaviour are interwoven and responded to support and stimulate one another. If one of the elements is high, other elements should be high as well. The research discusses on territorial functioning in the context of victimization and public housing in Malaysia. This research focused on territorial functioning and its relationship with victimisation, which vary according to the resident’s characteristics. In particular, this study, which was quantitative in nature, was conducted in Subang Jaya housing area. The data were collected and administered through face to face interviews with the household in the Subang Jaya housing area. The stratified random sampling obtained from the survey was 73% of the total 300 households with 218 samples of the Subang Jaya housing area. The data were then examined using SPSS through descriptive and inferential analysis. Territorial markers, territorial behaviour and territorial attitudes were also tested using factor analysis. The main purpose of the process is to calculate and combine territorial attitudes and marking behaviour as to create the overall total for territorial functioning as a whole figure. The whole figure obtained known as territorial functioning is correlated with demographic data and victimization. Results show that Territorial behaviour is high and reflected in the territorial displays which are chairs and tables outside the homes. Meaning that the more displays outside homes can deter intruders and strangers. Presence of real barriers and plantings is interpreted as deterrent to intrusion and an indication of a stronger occupant territorial attitude.