Specifically this is intended to include 252 places, derived as follows: Search http://inherit.stateheritage.wa.gov.au/public for places with "Fremantle" in their location, with "Limit my search to the State Register" checked). As of 2017, this yields 266. Of these 16 are in East Fremantle, to be subtracted. It includes one in South Fremantle and nine in North Fremantle, which are kept. Add two found with search on "Beaconsfield". No proper hits on "O'Connor", "White Gum", "Gibson Park", "Samson", or "Hilton" are found. This yields grand total of 252, as of 2017. Note, without limiting to State Register, there are many more: 3859 Fremantle hits, 152 White Gum Valley hits, 297 Beaconsfield hits, etc.
SHO list shows places based on information from the State Heritage Office's inHerit database which includes places which are included in the State Register of Heritage Places, the City of Fremantle's Municipal Heritage Inventory, the National Trust's List of Classified Places, the National Heritage List and the Commonwealth Heritage List.