Thousands of vital survey marks exist in New Zealand – many are below ground level and invisible to most of us. As well as supporting the surveying of property boundaries, they are important for engineering, roading, mapping and other land surveys.

It is in everyone’s interest to take care of survey marks and protect them from damage. At LINZ, we provide a free service that helps to preserve the marks.

If you’re planning works

Well before you begin, check whether any work could disturb survey marks, on beforeudig.co.nz or by getting in touch with LINZ directly:

beforeudig@linz.govt.nz
Survey Protection Advisory Service
Land Information New Zealand
PO Box 5501, Wellington 6145

If no marks are affected by your plans, you will hear back from us within a few days and can start work immediately.

If marks are at risk, we will send you prints of plans showing the location of the marks. You will have the option of diverting your works to avoid disturbing the marks, or contracting a Licensed Surveyor to protect or place new marks in a safe, usable location.

If survey marks are destroyed or disturbed

You or your organisation is responsible for the reinstatement or replacement of any destroyed or disturbed marks (Section 55, Cadastral Survey Act 2002). A Licensed Cadastral Surveyor must oversee the reinstatement or replacement to the standards set by the Surveyor-General.

Last Updated: 20 July 2020