You can find out whether or not properties are identified in the heritage overlay by checking the planning property report for address of the proposal. If a heritage overlay applies, you will see a link to the schedule of the overlay outlining whether certain requirements apply.
If the property is identified in the heritage overlay, you can search the Victorian Heritage Database for specific details as to why the property is listed in the heritage overlay. This will outline the significance of the place.
If you are unable to locate the neighbouring property in the Victorian Heritage database and you want more detail on the property, you can check the relevant local heritage study.
Both the Victorian Heritage Database and the local heritage study provide details such as the significance level, the architectural style, the history and historical context, a physical description and the conservation policy objectives and guidelines. This can form the basis for your response.