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Find out about the process we use for rent reviews, and the formula we use to calculate the rent.

Find out about valuers and property valuations in New Zealand.

Find the standard tidal levels for ports around New Zealand.

Definitions of common tidal terms.

The tide you see is a combination of all the different water movements happening at that location.

Standards and specifications for hydrographic surveys and the production of nautical charts and publications, and links to International Hydrographic Organization (IHO) resources.

You can keep your charts and nautical publications up to date using our Notices to Mariners.

Guidance and requirements for creating property addresses.

This section provides information to assist lawyers and conveyancers working in the Canterbury region, following the earthquakes.

Find common questions and answers about the LINZ Data Service and the datasets you can access through it.

Projections are selected so that they best represent an area of the globe on a flat surface. There are separate projections for McMurdo Sound, Borchgrevink Coast, Pennell Coast, and the Ross Sea.

Examples of the transformations between different vertical datums and height systems.

Guidance and examples for the transformation of heights between vertical datums.