Do I need my neighbour's consent, a boundary survey or a dilapidation report?

Neighbour notification, protection work and access requirements depend on local law and the proposed work. Before excavation or boundary work, ask your approval authority and adviser what notices, surveys, insurance or agreements are needed. Do not assume building approval gives you permission to enter adjoining land. Use a surveyor registered or licensed for boundary surveying in your jurisdiction. A dilapidation report records existing conditions; it is evidence rather than a decision about liability for later damage.

Official sources:

• BPC Protecting adjoining properties
• NSW Government boundary surveying

General information only. Requirements vary by state or territory and change over time, so check the current rules for your location.